A block of mass 12 kg is moving from the far left on a frictionless floor towards Point A with a uniform velocity of 10 m/s towards the right. Just as it crosses Point A, 3 constant forces start acting on the block as shown.The block comes to rest at Point B. The distance between Point A and Point B is 20m. Find the magnitude of the force F.
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Answer:
t=0
Explanation:
A block of mass 2 kg is free to move along the x-axis. It is at rest and from t=0 onwards it is subjected to a time-dependent force F(t) in the x direction. The force F(t) varies with t as shown in the figure. The kinetic energy of the block after 4.5 seconds is:
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gfioii ka f t. t r r r r e e e. w q a a a w e eee PC
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