Question

3.If a girl runs around a circular track of length 400m and comes back to
the initial point in 40s, what would be her speed and velocity.
7 point
O speed 25m/s,velocity 10
O speed 29m/s, velocity o
speed 10m/s, velocity 0
O speed 10m/s, velocity 10​

Answer 1

Answer:

speed -10m/s

velocity-0

Answer 2

Answer:

velocity = 0 m/s

speed = 10 m/s

Explanation:

She comes back to the initial point so displacement is 0 m.

and velocity = displacement / time = 0 / 40 = 0 m/s

and speed is total distance / time which is 400 / 40 = 10 m/s