Question

11. A body is moving vertically upwards. Its
velocity changes at a constant rate from 50 ms
to 20 ms' in 3s. What is its acceleration ?
Ans. -10 m The negative sign shows that the
velocity decreases with time, so retardation is
10 ms
​

Answer 1

Explanation:

A body is moving vertically upwards. Its velocity changes at a constant rate from 50 m/s to 20 m/s in 3s. What is its acceleration? The negative sign indicates velocity decreases with time, hence retardation is 10 m / s 2 10m/s^2 10m/s2.