Determine the magnitude and direction of the moment of the force of the movement if the force at A about point P.

Question: A block ot mass 20 kg lying on a rough horizontal plane is connected by a light string passing over a smooth pulley to another mass 5 kg, which can move freely in the Vertical direction, as shown in the below figure. The tension in the string will __________ with the increase in coefficient of friction.
[A].

increase

[B].

decrease

[C].

not be effected

Answer: Option A

Explanation:

No answer description available for this question.

Question: A pendulum which executes one beat per second is known as
[A].

simple pendulum

[B].

compound pendulum

[C].

torsional pendulum

[D].

second’s pendulum

Answer: Option D

Explanation:

No answer description available for this question.

Question: A body of mass m moving with a constant velocity v strikes another body of same mass m moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is
[A].

v

[B].

2v

[C].

4v

[D].

8v

Answer: Option B

Explanation:

No answer description available for this question.

Question: One joule means that
[A].

work is done by a force of 1 N when it displaces a body through 1m

[B].

work is done by a force of 1 kg when it displaces a body through 1 m

[C].

work is done by a force of 1 dyne when it displaces a body through 1 cm

[D].

work is done by a force of 1 g when it displaces a body through 1 cm

Answer: Option A

Explanation:

No answer description available for this question.

Question: A force acting in the opposite direction to the motion of the body is called force of friction.
[A].

Agree

[B].

Disagree

Answer: Option A

Explanation:

No answer description available for this question.