Home
Class 11
PHYSICS
A constant force acts on a body of mass ...

A constant force acts on a body of mass 0.9 kg at rest for 10 s . If the body moves a distance of 250 m, the magnitude of the force is

A

3N

B

3.5N

C

4.0N

D

4.5N

Text Solution

Verified by Experts

The correct Answer is:
D
` u = 0,S = 250m,t = 10 sec`
`S = ut + (1)/(2) at^(2) rArr 250 = (1)/(2)a(10)^(2) rArr a = 5 m//s^(2)`
So,F = ma = 0.9 xx 5 = 4.5 N`
Promotional Banner

Similar Questions

Explore conceptually related problems

A constant force acts on a body of mass 5 kg at rest for 10s. If the body moves through a distance of 250 m, what is the magnitude of the force?

A force acts for 10 s on a body of mass 10 kg after which the force ceases and the body describes 50 m in the next 5 s. Find the magnitude of the force.

A body of mass 3 kg at rest is acted upon by a force and the body moves through a distance 20 m in 5 s. Force on the body is

A constant force acts on a body of mass 10 g moving with a velocity of 500 ms^(-1) . The body is found to move with same velocity but in the opposite direction after 10 s . Calculate the magnitude of the force .

A constant force acts on a body of mass 1 kg for 5 s and then ceases to work . In the next 5 s the body describes 100 m . Calculate the force that acted on the body.

A uniform force of 4 N acts on a body of mass 10 kg for a distance of 2.0 m . The kinetic energy acquired by the body is