1
Question
A car accelerates from rest at a rate of 4m/s2 for 10 s. Calculate the speed of the car at the end of 10 s?
[Unless otherwise stated, use g=10m/s2 and neglect air resistance ]
A car accelerates from rest at a rate of 4m/s2 for 10 s. Calculate the speed of the car at the end of 10 s?
[Unless otherwise stated, use g=10m/s2 and neglect air resistance ]
Open in App
Solution
The correct option is D 40 m/s
Given : Initial velocity u=0 m/s Acceleration a=4 m/s2Time t=10 s
Using first equation of motion v=u+at∴ v=0+4(10)=40 m/s
Given :
Initial velocity u=0 m/s
Acceleration a=4 m/s2
Time t=10 s
Using first equation of motion
v=u+at
∴ v=0+4(10)=40 m/s
Suggest Corrections
0
A car starts from rest. It accelerates uniformly at the rate of 5 m/s2 and achieves a maximum velocity of 40 m/s. It then decelerates at the rate of 10 m/s2 and stops. Find the total time of the car’s journey.Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
