A body of weight W on inclined plane of a being pulled up by a horizontal force P will be on the point of motion up the plane when P is equal to________________?

Question: A number of forces acting at a point will be in equilibrium, if
[A].

all the forces are equally inclined

[B].

sum of all the forces is zero

[C].

sumof resolved parts in the vertical direction is zero (i.e. ∑V = 0)

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: Which of the following statement is correct in connection with projectiles?
[A].

A path, traced by a projectile in the space, is known as trajectory.

[B].

The velocity with which a projectile is projected, is known as the velocity of projection.

[C].

The angle, with the horizontal, at which a projectile is projected is known as angle of projection.

[D].

all of the above

Answer: Option D

Explanation:

No answer description available for this question.

Question: A smooth cylinder lying on its convex surface remains in __________ equilibrium.
[A].

stable

[B].

unstable

[C].

neutral

Answer: Option B

Explanation:

No answer description available for this question.

Question: A resultant force is a single force which produces the same effect as produced by all the given forces acting on a body.
[A].

True

[B].

False

Answer: Option A

Explanation:

No answer description available for this question.

Question: If a body is acted upon by a number of coplaner non-concurrent forces, it may
[A].

rotate about itself without moving

[B].

move in any one direction rotating about itself

[C].

be completely at rest

[D].

all of these

Answer: Option D

Explanation:

No answer description available for this question.