ntA body of mass 4 kg is moving up an inclined plane rising 1 in 40 with velocity 40m/sec if efficiency is 50% then calculate power required.n

Q. A truck of mass $10000kg$ moves up an inclined plane rising $si{n}^{-1}50$ with a speed of $36km/h$, then the power of engine: ($g=10m/s^2$)

Q. A body of mass $2kg$ moving on horizontal surface with an initial velocity of $4m/sec$ comes to rest after $2sec$. If one wants to keep this body moving on the same surface with a velocity of $4m/sec$, then the force required is:-

Q. A plane surface is inclined at an angle of ${60}^0$ with the horizontal. A body of mass 10 kg is uniformly accelerating, along the inclined plane surface. If the value of coefficient of friction ${\mu }_s$, between the body and the inclined surface is 0.2, calculate the minimum force required to pull the body up the inclined plane.

Q. A block of mass 0.5 kg is kept on a rough inclined plane making an angle of ${30}^o$ with horizontal.What power will be required to move the block up the plane(among the plane) with a velocity of 5m/s?(Take $\mu$=0.2 between block and plane)

Q. A body slides down a rough inclined plane of inclination $\theta$ with constant velocity $v$. If it is projected up the plane with velocity $2v$, then it moves up the plane with