Question

The velocity time graph of a body is given as follows-

The following velocity-time graph shows the motion of a cyclist. Find (i) its acceleration, (ii) its velocity and (iii) the distance covered by the cyclist in 15 seconds.

If the displacement of an object is proportional to square of time, then the object moves with

An object starting from rest travels 20 m in first 2 s and 160 m in next 4 s. What will be the velocity after 7 s from the start.

Assertion (A): If the velocity of a body in uniform motion changes, its acceleration cannot remain constant. Reason (R): If a body is thrown vertically upward, the relationship between initial velocity (u) and acceleration (a) at any moment is v² – u² = 2as.