A $50\text{N}$ force is applied to the body of $2\text{kg}$. This applied force maintains the velocity of the body at $2\text{m/s}$. If the body moves in perpendicular direction to the applied force, find the power delivered by the force.

Q. A $50\text{N}$ force is applied to the body of $2\text{kg}$. This applied force maintains the velocity of the body at $2\text{m/s}$. If the body moves in perpendicular direction to the applied force, find the power delivered by the force.

Q. A constant force $F_1=10\sqrt{3}N$ applied at an angle ${30}^{\circ }$ with horizontal on body $(m=5\text{kg})$ at rest for $8\text{second}$. In this time interval, body moves from position A to B. To move from position B to A, another constant force $F_2=20\text{N}$ is applied on body . If work done by this force is $960\text{J}$, then find the angle at which the force is acting on the body with horizontal.

Q.

A force F is applied to the body and body displaces in the direction of force applied. If the force applied to the body is doubled, the work done will be

Q. A force is applied on a body of mass $20kg$ moving with a velocity of $40m{s}^{-1}$. The body attains a velocity of $50m{s}^{-1}$ in $2$ seconds. Calculate the work done to attain this velocity.

Q.

A force of $50N$ is applied on a body of mass $2kg$ at an angle of 30° with the vertical. Find the acceleration with which the body moves in the horizontal direction.