Question

A body of mass 300 gm is at rest. What force
in Newton will you have to apply to move it
through 200 cm in 10 sec.?
A) Zero
B) 12 Newton
C) 1.2 Newton
D) 0.12 Newton​

Answer 1

Answer:

mass = 300 grams= 0.3 kilograms. Velocity=S/t=2/10=0.2 metre/ sec. ⇒Force=0.006 Newtons.

Answer 2

Answer: 12 Newton / 0.12 Newton

Explanation:

Mass=300g = 0.3 kg

Initial velocity=u=0

Distance=s=200cm

Time=t=10sec

Final velocity=v=distance/time

v=200/10=20m/s

Since we have to find acceleration,

v=ut+at^2

20=0×10 + 1/2×a×10^2

a=0.4 m/s^2

F= ma

=0.3×0.4

=0.12 or 12 N

~Hope this helps :)