Graph A: the velocity remains constant/uniform as time increases. The slope of the graph and hence the acceleration of the body is zero.
Graph B: the velocity changes uniformly with time. The body moves with a uniform/constant acceleration.
Graph D: in this case, the graph is steeper at the beginning and becomes gentle with time. Hence the acceleration of the body decreases with time.
sharon kalunda answered the question on April 24, 2019 at 05:26
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Explain the dangers of static charges
(Solved)
Explain the dangers of static charges
Date posted:
April 23, 2019
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Answers (1)
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In the figure below x=30cm, y=6cm, effort E=60N, A1=4cm2 and A2=12cm2.
(Solved)
In the figure below x=30cm, y=6cm, effort E=60N, A1=4cm2 and A2=12cm2.
Calculate:
a) The force F exerted on the liquid at A1.
b) The velocity ratio of the system.
c) The maximum load that can be raised by the system.
Date posted:
April 23, 2019
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Answers (1)
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A box of mass 30kg is pushed up an inclined plane of length 14m using a force of 130N as shown below:
(Solved)
A box of mass 30kg is pushed up an inclined plane of length 14m using a force of 130N as shown below:
If the track is inclined at an angle of 200, calculate:
a) The height of the platform.
b) Workdone by the force of 130N.
Date posted:
April 23, 2019
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Answers (1)
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Draw a flow chart to show the energy transformation in a hydroelectric power station:
(Solved)
Draw a flow chart to show the energy transformation in a hydroelectric power station:
Date posted:
April 23, 2019
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Answers (1)
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State the characteristics energy:
(Solved)
State the characteristics energy:
Date posted:
April 23, 2019
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Answers (1)
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The mass of a density bottle is 20g when empty and 45g when full of water. When full of mercury, its mass is 360g. Calculate...
(Solved)
The mass of a density bottle is 20g when empty and 45g when full of water. When full of mercury, its mass is 360g. Calculate the density of mercury.
Date posted:
April 23, 2019
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Answers (1)
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Derive the three equations of linear motion.
(Solved)
Derive the three equations of linear motion.
Date posted:
April 23, 2019
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Answers (1)
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The figure below represents part of a tape pulled through a ticker-timer by a trolley moving down an inclined plane. If the frequency of the...
(Solved)
The figure below represents part of a tape pulled through a ticker-timer by a trolley moving down an inclined plane. If the frequency of the ticker-timer is 50Hz, calculate the acceleration of the trolley.
Date posted:
April 23, 2019
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Answers (1)
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A paper tape was attached to a moving trolley and allowed to run through a ticker-timer. The figure below shows a section of the tape.
(Solved)
A paper tape was attached to a moving trolley and allowed to run through a ticker-timer. The figure below shows a section of the tape.
If the frequency of the ticker-timer is 20Hz, determine:
a) The velocity between AB and CD.
b) The acceleration of the trolley.
Date posted:
April 23, 2019
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Answers (1)
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A body is made to change its velocity from 20m/s to 36m/s in 0.1s. What is the acceleration produced?
(Solved)
A body is made to change its velocity from 20m/s to 36m/s in 0.1s. What is the acceleration produced?
Date posted:
April 23, 2019
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Answers (1)
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Outline the three common types of motion:
(Solved)
Outline the three common types of motion:
Date posted:
April 23, 2019
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Answers (1)
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A machine with a velocity ratio of 30 moves a load of 300N when an effort of 200N is applied. Calculate the efficiency of the...
(Solved)
A machine with a velocity ratio of 30 moves a load of 300N when an effort of 200N is applied. Calculate the efficiency of the machine.
Date posted:
April 22, 2019
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Answers (1)
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Explain why a man using a parachute falls through air slowly while a stone falls through air very fast
(Solved)
Explain why a man using a parachute falls through air slowly while a stone falls through air very fast.
Date posted:
April 22, 2019
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Answers (1)
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A man makes a deeper marks while walking on a soft ground in a high heeled shoes than in a flat shoes. Explain
(Solved)
A man makes a deeper marks while walking on a soft ground in a high heeled shoes than in a flat shoes. Explain
Date posted:
April 22, 2019
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Answers (1)
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Explain how temperature affects Brownian motion
(Solved)
Explain how temperature affects Brownian motion.
Date posted:
April 18, 2019
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Answers (1)
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State the applications of extended light sources
(Solved)
State the applications of extended light sources
Date posted:
April 15, 2019
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Answers (1)
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State the advantage of the Pinhole Camera over the Lens Camera
(Solved)
State the advantage of the Pinhole Camera over the Lens Camera
Date posted:
April 15, 2019
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Answers (1)
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Discuss the Maintenance of the Accumulators
(Solved)
Discuss the Maintenance of the Accumulators
Date posted:
April 15, 2019
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Answers (1)
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Define Electromotive Force (E.m.f) and Potential Difference
(Solved)
Define Electromotive Force (E.m.f) and Potential Difference
Date posted:
April 15, 2019
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Answers (1)
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What is the danger of Electrostatics?
(Solved)
What is the danger of Electrostatics?
Date posted:
April 15, 2019
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Answers (1)