1.
A block of mass 10kg10\,\text{kg} is released from the top of a smooth wedge (inclination θ=37\theta = 37^\circ) which is moving with a constant velocity 10m/s10\,\text{m/s}. The work done by the force applied by the wedge on the block in 2s2\,\text{s} will be (in joules)