Question

Please Solve This Problem

Answer 1

Answer:

in first we have to find distance by newton second law

Answer 2

Question

Gogi is driving at 20 m/s. He applied brakes generating a force of - 500 N. Find the distance after which the car will stop,if its mass is 100 Kg

Solution

From the Question,

• Mass,m = 100 Kg

• Force,F = - 500 N

• Inital Velocity,u = 20 m/s

Eventually the car comes to a stop,its final velocity would be zero

We know that,

F = Ma

》 - 500 = 100a

》 a = - 5 m/s²

We know that,

v² - u² = 2as

》 0² - 20² = 2(-5)s

》 s = 40/10

》 s = 40 m

The car covers 40m before stopping

Question

Gogi pushes his scooter for 4s. The scooter gives a velocity 8 m/s. Find the force applied by him if the mass is 10 Kg

Solution

Given,

• Time,t = 4s

• Final Velocity,v = 8 m/s

• Mass,m = 10 Kg

We know that,

v = u + at

》 8 + 0 = 4a

》 a = 2 m/s²

We know that,

F = Ma

》 F = 20 N

The applied force is 20 N