if a moving body changes its velocity from 30m/s to 15m/s the body's motion becomes?
it becomes slower as by newton's 2nd law, it undergoes a change in momentum, assuming its mass is kept constant.
a resultant force acts in the opposite direction of its motion. hence it s.
To determine the type of motion, we need to compare the final velocity (15 m/s) to the initial velocity (30 m/s).
When the final velocity is less than the initial velocity, it means that the body is slowing down or decelerating.
Therefore, if a moving body changes its velocity from 30 m/s to 15 m/s, the body's motion becomes deceleration.
To determine the type of motion the body undergoes when its velocity changes from 30 m/s to 15 m/s, we need to consider the acceleration of the body.
Acceleration can be calculated using the formula:
acceleration (a) = change in velocity (Δv) / change in time (Δt)
Given that the initial velocity (u) is 30 m/s and the final velocity (v) is 15 m/s, the change in velocity (Δv) would be:
Δv = v - u = 15 m/s - 30 m/s = -15 m/s
Since the change in time (Δt) is not provided, we cannot determine the exact acceleration of the body. However, we can still make conclusions based on the sign of the change in velocity.
In this case, a change in velocity of -15 m/s indicates that the body is slowing down or decelerating. The negative sign indicates a decrease in speed. Therefore, the body's motion becomes decelerating or slowing down.