Question

OBJECTIVE PHYSICS IA
NEWTON'S LAWS OF MOTION
EXERCISE-lll

(Motion of bodies in contact, Connected by strings and Mass pulley system)
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LEVEL-I (MAIN)
Straight Objective Type Questions
A rope AB of length 5m and mass 2kg is attached to a 6kg block kept on a smooth surface an
pulled by a force of 40N.
B.
A) Find the acceleration of block.
1) 3m/s2
2) 4m/s2
3) 5m/s2
4) 7m/s2
B) Find the force applied by the rope on the block.
1) 30N
2) 40N
3) 50N
4) none
C) Find the tension in the rope at a point 'C' in it so that AC:CB=3:1
1) 12.5N
2) 22.5N
3) 32.5N
4) 42.5N​

Answer 1

A

1) 4m/s2

B

2) 40N

C

1) 12.5N

Answer 2

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