Question

If a body mass 500g initial and final velocities are 20,30 meters per second respectively in force applied by the body in 10 seconds is

Answer 1

Answer:

0.5N

Explanation:

given Mass=500g=0.5kg

a=v-u/t

= 30-30/10=1m/s2

F=ma=0.5*1=0.5N

Answer 2

Answer:

F = 0.5 N

Explanation:

Given :

Mass = 500 g

In term of kg

m = 0.5 kg

Initial and final velocity are 20 m / sec and 30 m / sec .

We have to find force :

We know :

F = m a

a = v - u / t

F = m ( v - u / t )

Putting values here :

F = 0.5 ( 30 - 20 / 10 ) N

F = 0.5 ( 10 / 10 ) N

F = 0.5 N

Thus applied force is 0.5 N by the body .