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Free download in PDF Machine Kinematics Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like UPSC, NDA, SSC etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
A sphere of mass 25 Kg is moving at a speed of 1.5 m/s undergoes collision with another sphere of mass 50 Kg moving at 3m/s in the same direction, find the loss of kinetic energy when the collision is inelastic.
[A]
18.75 N-m
[B]
19.75 N-m
[C]
17.75 N-m
[D]
16.75 N-m
(2)
The coefficient of restitution is 0 for a completely inelastic collision.
(3)
A sphere of mass 25 Kg is moving at a speed of 1.5 m/s undergoes collision with another sphere of mass 50 Kg moving at 3m/s in the same direction, find the loss of kinetic energy when the collision is inelastic with e = 0.6.
[A]
18.75 N-m
[B]
12.00 N-m
[C]
13.75 N-m
[D]
12.75 N-m
(4)
A sphere of mass 25 Kg is moving at a speed of 1.5 m/s undergoes collision with another sphere of mass 50 Kg moving at 3m/s in the same direction, find the common velocity in m/s after collision when the collision is completely inelastic.
[A]
2.5
[B]
9.75
[C]
7.25
[D]
6.75
(5)
A sphere of mass 25 Kg is moving at a speed of 1.5 m/s undergoes collision with another sphere of mass 50 Kg moving at 3m/s in the same direction, find the velocity of 50 Kg mass in m/s after collision when the collision is elastic.
[A]
2.5
[B]
2.00
[C]
7.25
[D]
6.75
(6)
Coefficient of restitution of elastic bodies is ______
[A]
One
[B]
More than one
[C]
Between 0 and one
[D]
Zero
(7)
Kinetic energy before collision is always equal to the kinetic energy after collision.
(8)
Which of the following cases has the greatest loss in Kinetic energy?
[A]
e=0
[B]
e=1/2
[C]
e=1/4
[D]
e=1
(9)
A sphere of mass 25 Kg is moving at a speed of 1.5 m/s undergoes collision with another sphere of mass 50 Kg moving at 3m/s in the same direction, find the velocity of 25 Kg mass in m/s after collision when the collision is elastic.
[A]
2.5
[B]
2.00
[C]
3.5
[D]
6.75
(10)
A sphere of mass 25 Kg is moving at a speed of 1.5 m/s undergoes collision with another sphere of mass 50 Kg moving at 3m/s in the same direction, find the velocity of 25 Kg mass in m/s after collision when the collision is inelastic with e = 0.6.
[A]
2.5
[B]
2.00
[C]
3.5
[D]
3.1
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