A particle moves under the action of a force `F=20hati + 15hatj` along a straight line `3y + alphax =5`, where, `alpha` is a constant. If the work done by the force F is zero the value of `alpha` is .

Forces acting on a particle moving in a straight line varies with the velocity of the particle as F = (alpha)/(upsilon) where alpha is constant. The work done by this force in time interval Delta t is :

Forces acting on a particle moving in a straight line varies with the velocity of the particle as F = (alpha)/(upsilon) where alpha is constant. The work done by this force in time interval Delta t is :

A particle moves along a circular path under the action of a force. The work done by the force is

The force F acting on a particle is moving in a straight line as shown in figure. What is the work done by the force on the particle in the 4 m of the trajectory?

The force F acting on a particle is moving in a straight line as shown in figure. What is the work done by the force on the particle in the 4 m of the trajectory?

A block of mass m is taken from A to B under the action of a constant force F. Work done by this force is

A block of mass m is taken from A to B under the action of a constant force F. Work done by this force is

The force F acting on a particle moving in a straight line is shown below. What is the work done by the force on the particle in the 1^(st) meter of the trajectory ?