Question

a A unifarm chain of length L, measured in m, is held vertically so that the lower end j down. If xtt) denates the length of the chain on the f Just touches the floor The chain weighs 20 N/m. The upper end that is held is reeased from rest at t o and the chain fas streight taken to be downward, then we have the following. (Tase g to be meured m floor at time t (In seconds), alr resistance is ignored, and the positive direction is (a) Solve for v in terms of x. Solve for x in terms of t. Express v in terms of r v(t)- mys (b) Determine how tong it takes for the chain to fall completely to the ground (c) What velocity (in m/s) dees the modet in part (a) predict for the uper end of the chain as it hits the ground le

Answer 1

Saath Date じ 乙dn 2 Tt Leokn like e(u) VA 1 2.19 2

2 eut 3 co P

Date 2 bletc