Question

MCQ : What force will change the velocity of a body of mass 1 kg from 20 m/s to 30 m/s in 2 s?

September 20, 2023

Answer

Question

What force will change the velocity of a body of mass 1 kg from 20 m/s to 30 m/s in 2 s?

25 N
5 N
10 N
2 N

Answer

5 N

Explanation

F = Δp/t

F = $m(v-u)\over t$

F = $1 \times (30-20)\over 2$

F = $1 \times (10)\over 2$

F = 5 N

Was this answer helpful?

Didn't liked the above answer ?

Text Generation Tool

💡 Some Related Questions

A body of mass 10 kg is moving with a velocity of 100 m/s. Find the force needed to stop it in 5 seconds.

A body of mass 100 g is at rest. A force acts on it for 3 seconds and the body attains a velocity of 15 cm/ s. Calculate the magnitude of force.

The velocity of a body of mass 5 kg changes from 20 m/s to 10 m/s. Calculate the change of momentum of the body.

Calculate the acceleration of a body of mass 5 kg when a force of 15 Newton acts on it

The velocity-time graph of the motion of a car is given. Find the distance travelled by the car in the first six seconds

The velocity-time graph of a body moving in a straight line is shown in the Fig. Find the displacement and distance travelled by the body in 6 seconds.

The speed-time graph of a particle moving along a fixed direction is shown in fig. Obtain the distance traversed by the particle between

Establish graphically : (i) v = u + at, (ii) s = ut + 1⁄2 at², (iii) v² = u² + 2as.

LAQ : ‘All rest and motion are relative’- Explain. Define displacement, speed, velocity, acceleration and retardation.

LAQ : State and explain the principle of conservation of linear momentum and establish it from Newton’s third law of motion

error: Content is protected !! 💀