Home
Class 9
PHYSICS
A scooter moving at a speed of 10 m/s i...

A scooter moving at a speed of 10 m/s is stopped by applying brakes which produce a uniform acceleration of, -0.5 m/`s^(2)`. How much distance will be covered by the scooter before it stops ?

A

50 m

B

75 m

C

100 m

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Here, Initial speed, `u` = 10 m/s
Final speed, `v` = 0 (Scooter stops)
Acceleration, `a` = -0.5 m/`s^(2)`
And, Distance covered, `s` = ? (To be calculated)
Now, putting these values in the third equation of motion :
`" "v^(2)=u^(2)+2as`
We get : `" "(0)^(2)=(10)^(2)+2xx(-0.5)xxs`
`" "0=100-s`
`" "s=100` m
Thus, the distance covered is 100 metres.
Promotional Banner

Topper's Solved these Questions

  • MOTION

    LAKHMIR SINGH & MANJIT KAUR|Exercise SAMPLE PROBLEM|1 Videos

  • MOTION

    LAKHMIR SINGH & MANJIT KAUR|Exercise VERY SHORT ANSWER TYPE QUESTIONS|3 Videos

  • MODEL TEST PAPER 5

    LAKHMIR SINGH & MANJIT KAUR|Exercise Section B|2 Videos

  • SOUND

    LAKHMIR SINGH & MANJIT KAUR|Exercise Value Based Questions|20 Videos

Similar Questions

Explore conceptually related problems

A racing car has a uniform acceleration of 4 m//s^(2) . What distance will it cover in 10 s after start ?

A train is travelling at a speed of 90 km//h . Brakes are applied so as to produce a uniform acceleration of - 0.5 m//s^(2) . Find how far the train will go before it is brought to rest.

A bus running at a speed of 18 km/h is stopped in 2.5 seconds by applying brakes. Calculate the retardation produced.

A car is moving with constant speed 15 m//s . Suddenly the driver sees an obstruction on the road and takes 0.40 s to apply the brake, the brake causes a deceleration of 5 m//s^(2) . Find the distance traveled by the car before it stops.

A motorcycle moving with a speed of 5 m/s is subjected to an acceleration of 10 m s^(-2) . If the body starts from rest, how much distance will it cover in 2 s ?

A car moving with a speed v is stopped by applying brakes with in a distance s and time t. If it would have been travelling with Kv then by applying same breaking force it can be stopped with in

A driver applies the brakes on seeing traffic singal 400m ahead. At the time of applying of brakes vehicle was moving with speed 15 m//s . The brekes provide uniform deceleration of 0.3m//s^(2) . The displacement of the vehicle in 1 mmin duration after the driver sees the singal is :

A train starting from rest moves with a uniform acceleration of 0.2 m//s^(2) for 5 minutes . Calculate the speed acquired and the distance travelled in this time.