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A mass of 100 g strikes the wall with a speed of 5 m s−1 at an

Question

A mass of 100 g strikes the wall with a speed of 5 m s−1 at an angle as shown in figure and it rebounds with the same speed. If the contact time is 2×10−3s, what is the force applied by the wall?

A

2503√N to right

B

250 N to right

C

2503√ N to left

D

250 N to left

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A mass of 100 g strikes the wall with a speed of 5 m s−1 at an angle as shown in figure and it rebounds with the same speed. If the contact time is 2×10−3s, what is the force applied by the wall?

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Text solutionVerified

Here, m = 100 g = 0.1 kg v=5ms−1,t=2×10−3s θ=60∘ As F×t=Change in momentum =2mvsinθ Or F=2mvsinθt=2×0.1×5×sin60∘2×10−3 =500×sin60∘=2503√N to left

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Question Text	A mass of 100 g strikes the wall with a speed of 5 m s−1 at an angle as shown in figure and it rebounds with the same speed. If the contact time is 2×10−3s, what is the force applied by the wall?
Answer Type	Text solution:1
Upvotes	151