Question

If the ball was moving at 3 m/s after hitting a pebble
reduces 1 m/s in 30 seconds find.
its acceleration and distance ?​

Answer 1

Step-by-step explanation:

u=3m/s

v=3-1=2m/s

t=30s

v=u+at

2=3+30a

-1=30a

a= -1/30 m/s^2

v^2=u^2+2as

2^2=3^2+2(-1/30)s

4=9-1/15s

1/15s=9-4

1/15s=5

s=5*15

s=75 m