Question

a stone of mass 1 kg with a velocity 20 m/s acroos the frozen surface of a lake come to rest after travelling a distance of 50 m​

Answer 1

Answer:

This might help you

Explanation:

m=1kg

U=20m/s

V=0m/s

S=50m

2as=V2-U2

2×a×50=0-40

100a= -400

a= -400/100

= -4m/s2

F=ma

= 1×-4

= -4N