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
- 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. Answers (1)
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calculate the value of v given that the speed...(Solved)
A glass of refractive index 1.44 allow light to travel through if at a speed v.
calculate the value of v given that the speed of light in air =3 x 10^8 m/s.
Date posted: October 6, 2017. Answers (1)
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i. Initial velocity of the stone (ignore air resistance and take g =...(Solved)
A stone was projected upwards and reached a height of 200 m. Determine the:
i. Initial velocity of the stone (ignore air resistance and take g = 10 m/s^2)
ii. Total time the stone is in air
Date posted: October 6, 2017. 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 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. 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, 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. 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 of 200 m/s. Determine the average deceleration of the bullet in the trunk.
Date posted: October 6, 2017. Answers (1)
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Date posted: October 6, 2017. Answers (1)
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Date posted: October 6, 2017. Answers (1)
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Date posted: October 6, 2017. Answers (1)
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Date posted: October 6, 2017. Answers (1)
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Date posted: October 6, 2017. Answers (1)
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Date posted: October 6, 2017. Answers (1)
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Date posted: October 6, 2017. Answers (1)
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Date posted: October 6, 2017. Answers (1)
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Date posted: October 6, 2017. Answers (1)
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Date posted: October 6, 2017. Answers (1)
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Date posted: October 6, 2017. Answers (1)
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Date posted: October 6, 2017. Answers (1)
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Date posted: October 6, 2017. Answers (1)