Question

49) A body starts with some initial velocity along a straight
line. After 3 s it is found to be at a distance of 15 m from
the starting point. At 4 s it is at starting point. What is
the initial velocity of the body? (Assume constant
acceleration)
(a) 20 ms
(b) 10 ms
(c) 5 ms
(d) 15 ms​

Answer 1

Answer:

a 20 ms

Explanation:

answer is 20 metre per second