It is easy to roll than pull a barrel along a road.

Questions based on paragraph A man pulls a cart on a horizontal road of 2 m by applying a force of 200 N. Later the road gets inclined at an angle of 60° with horizontal and man starts pulling his cart from base of the inclined road to the top. The length of the inclined portion of road is 4 m. Based on the given information answer the following questions. What will be the work done by the man to pull the cart along the inclined part of the road?

Questions based on paragraph A man pulls a cart on a horizontal road of 2 m by applying a force of 200 N. Later the road gets inclined at an angle of 60° with horizontal and man starts pulling his cart from base of the inclined road to the top. The length of the inclined portion of road is 4 m. Based on the given information answer the following questions. What will be the height of inclined surface?

Give scientific reasons: It is easy to swim in a swimming pool than in a river.

The curved horizontal road is banked at an angle theta . What will happen to a vehicle moving along this road if : theta'>theta . Where theta is the angle of banking for given road.

The curved horizontal road is banked at an angle theta . What will happen to a vehicle moving along this road if : theta' < theta . Where theta is the angle of banking for given road.

Answer the following questions : If the value of g suddenly becomes twice its value , it will become two times more difficult to pull a heavy object along the floor. why ?

STATEMENT-1: It is easier to pull a heavy object than to push it on a level ground and STATEMENT-2: The magnitude fo frictional force depends on the nature of the two surfaces in contact.

A ladder 5 m in length is resting against vertical wall. The bottom of the ladder is pulled along the ground away from the wall at the rate of 1.5m/sec. The length of the highest point of the ladder when the foot of the ladder 4.0 m away from the wall decreases at the rate of a)2m/s b)3m/s c)2.5m/s d)1.5m/s

A ladder 5 m in length is resting against vertical wall. The bottom of the ladder is pulled along the ground away from the wall at the rate of 1.5 m/ sec. The length of the higher point of ladder when the foot of the ladder is 4.0 m away from the wall decreases at the rate of A) 1 B) 2 C) 2.5 D) 3