Home
Class 9
PHYSICS
A car accelerates uniformly from 18 km h...

A car accelerates uniformly from 18 km `h^(-1)` to 36 km `h^(-1)` in 5s. Calculate
the acceleration

Text Solution

Verified by Experts

We are given that
`u=18km^(-1)=5ms^(-1)`
`v=36kmh^(-1)=10ms^(-1)`
`t=5s`
From Eq. (8.5) we have
`a=(v-u)/t`
`=(10ms^(-1)-5ms^(-1))/(5s)`
`=1ms^(-2)`
Promotional Banner

Similar Questions

Explore conceptually related problems

A car accelerates uniformly from 18 km h^(-1) to 36 km h^(-1) in 5s. Calculate the distance covered by the car in that time.

An object of mass 100 kg is accelerated uniformly from a velocity of 5 m s^(-1) to 8ms^-1 in 6 s. Calculate the initial and final momentum of the object. Also, find the magnitude of the force exerted on the object.

A bus decreases its speed from 80 km/h to 60 km/h in 5s. Find the acceleration of the bus.

A particle covers 100 m in the first 5s and 300 m in the next 5s. Calculate the uniform acceleration. Calculate the initial velocity of the particle.

A body of mass m, accelerates uniformly from rest to v_(1) in time t_(1) . The instantaneous power delivered to the body as a function of time is :

If a car at rest accelerates uniformly to a speed of 144 km/h in 20 s, it covers a distance of:

A force of 5 N gives a mass m_(1) , an acceleration of 10 m s^(2) and a mass m_(2) , an acceleration of 20 ms^(-2) . What acceleration would it give if both the masses were tied together ?