The mattress increases the stopping time which reduces the rate of change of momentum. (Impulse)
joseph rimiru answered the question on October 6, 2017 at 20:24
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Water has a refractive index of 1.35. Determine the speed of light in water given that the speed light in air is 3.0 x 10^8...
(Solved)
Water has a refractive index of 1.35. Determine the speed of light in water given that the speed light in air is 3.0 x 10^8 m/s
Date posted:
October 6, 2017
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Answers (1)
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A lawn tennis ball of mass 300 g is thrown vertically upwards with a vertically of 10 m/s. The air cause a resistance of 10...
(Solved)
A lawn tennis ball of mass 300 g is thrown vertically upwards with a vertically of 10 m/s. The air cause a resistance of 10 m/s. The air caused a resistance of 0.5 N.
Determine
a. The net force on the ball as it moves up. (Take g=10m/s)
b. The acceleration of the ball
c. The maximum height reached by the ball.
Date posted:
October 6, 2017
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Answers (1)
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A simple pendulum was used by a student to determine the acceleration due to gravity, g, she obtained the following values: L = 80.0 cm,...
(Solved)
A simple pendulum was used by a student to determine the acceleration due to gravity, g, she obtained the following values: L = 80.0 cm, the period T was 1.9s. given that T=2π√(l/g) determine the value of g correct to two significant figures.
Date posted:
October 6, 2017
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Answers (1)
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A bullet hit a tree trunk of diameter 100 cm at a velocity of 500 m/s, emerging from the other opposite side with a velocity...
(Solved)
A bullet hit a tree trunk of diameter 100 cm at a velocity of 500 m/s, emerging from the other opposite side with a velocity of 200 m/s. Determine the average deceleration of the bullet in the trunk.
Date posted:
October 6, 2017
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Answers (1)
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State two types of potential energy
(Solved)
State two types of potential energy
Date posted:
October 6, 2017
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Answers (1)
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State any four sources of energy.
(Solved)
State any four sources of energy.
Date posted:
October 6, 2017
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Answers (1)
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State any four forms of energy.
(Solved)
State any four forms of energy.
Date posted:
October 6, 2017
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Answers (1)
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Define Energy.
(Solved)
Define Energy.
Date posted:
October 6, 2017
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Answers (1)
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State two types of fluid flow.
(Solved)
State two types of fluid flow.
Date posted:
October 6, 2017
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Answers (1)
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State two applications of Pressure
(Solved)
State two applications of pressure.
Date posted:
October 6, 2017
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Answers (1)
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State two types of coefficient of Friction.
(Solved)
State two types of coefficient of Friction.
Date posted:
October 6, 2017
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Answers (1)
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State two types of Friction.
(Solved)
State two types of Friction.
Date posted:
October 6, 2017
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Answers (1)
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State and explain two types of collisions.
(Solved)
State and explain two types of collisions.
Date posted:
October 6, 2017
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Answers (1)
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Define Impulse.
(Solved)
Define Impulse.
Date posted:
October 6, 2017
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Answers (1)
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What is a Newton?
(Solved)
What is a Newton?
Date posted:
October 6, 2017
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Answers (1)
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Describe a displacement time graph for a body moving at a uniform velocity from rest in a positive direction.
(Solved)
Describe a displacement time graph for a body moving at a uniform velocity from rest in a positive direction.
Date posted:
October 6, 2017
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Answers (1)
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Define Linear motion.
(Solved)
Define Linear motion
Date posted:
October 6, 2017
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Answers (1)
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What is a spring balance?
(Solved)
What is a spring balance
Date posted:
October 6, 2017
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Answers (1)
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Define electrostatic force.
(Solved)
define electrostatic force
Date posted:
October 6, 2017
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Answers (1)
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What is Friction force?
(Solved)
What is Friction force?
Date posted:
October 6, 2017
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Answers (1)