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InterviewSolution
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A ball is projected vertically upwards. Air resistance and variation in g may be neglected. The ball rises to its maximum height H in a time T, the height being h after a time t : (1) The graph of kinetic energy `E_(k)` of the ball against height h is shown in figure 1 (2) The graph of height h against time t is shown in figure 2 (3) The graph of gravitational energy `E_(k)` of the ball against height h is shown in figure 3 (1) (2) In the above situation the block wili have maximum velocity when:A. the spring force becomes zeroB. the frictional force becomes zeroC. the net force becomes zeroD. the acceleration of block becomes zero |
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Answer» Correct Answer - C::D |
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