Question

If a body having mass 40kg started moving initially with rest and it takes a velocity of 20m/sec in time 4 seconds. Find the value of force​.​​

Answer 1

Given:-

Initial velocity =0 m/s

final velocity=20m/s

Time =4 sec

Mass =40kg

then acceleration=20-0/4 m/s²=20/4 m/s²=5 m/s²

Force =mass ×acceleration

=40×5 N=200N

Answer 2

Answer:

F=200N

Step-by-step explanation:

a=v-u/t

20-0/4

5 m/square.

F=ma

40*5

200N