In the first 10s of a body’s motion, the velocity changes from 10 m/ – McqOptions

MCQOPTIONS

1.	In the first 10s of a body’s motion, the velocity changes from 10 m/s to 20m/s. During the next 30s the velocity changes from 20m/s to 50m/s. What is the average acceleration in m/s2?
A.	1
B.	2
C.	3
D.	0.5
Answer» B.

Discussion

No Comment Found

Related MCQs

A bus moves the first few meters of its journey with an acceleration of 5 m/s2 in 10s and the next few meters with an acceleration of 15 m/s2 in 20s. What is the final velocity in m/s if it starts from rest?
In the first 10s of a body’s motion, the velocity changes from 10 m/s to 20m/s. During the next 30s the velocity changes from 20m/s to 50m/s. What is the average acceleration in m/s2?
A caterpillar starts travelling at a speed of 1 m/h. If the rate at which the speed changes is 0.1 m/h2, what is the final speed after 10 Hrs?
A ball is thrown up with an initial velocity of 20 m/s and after some time it returns. What is the maximum height reached? Take g = 10 m/s2.
A car moves with zero initial velocity up to a velocity of 5 m/s with an acceleration of 10 m/s2. The distance covered is ___
A car moves for 60s covering a distance of 3600m with zero initial velocity. What is the acceleration in m/s2?