Question

The displacement S (in m) of a body at any
time t (in second) from the start is given by
S = 15t - 0.42. The magnitude of rate of change
of displacement of the body will be 7 m/s after
time
(1) 10 s
(2) 20 s
(3) 15 S
(4) 30 s​

Answer 1

Answer:

(all).....................xD