Question

What force is needed to speed up a frictionless 60 kg cart from 4.0 m/s to 6.5 m/s in 3.0 seconds
A) 50 N
B) 100 N
C) 5 N
D) 20 N​

Answer 1

Answer:

50 Newton................

Answer 2

Answer:

50N

Explanation:

given:-

m=60kg

v=6.5m/s

u=4m/s

t=3s

TO FIND:-

a= acceleration

F= Force

SOLUTION:-

a = v-u/t

a = 6.5-4/3

a =2.5/3

a=25/30

a =5/6m/s^2

F =ma

F = 60 × 5/6

F= 10×5

F=50N

HOPE IT HELPS ;)