2. If two bodies having masses m1 and m2 (m1>m2) have equal kinetic energies, the momentum of body having mass m1 is __________ the momentum of body having mass m2.
5. The range of projectile on a downward inclined plane is __________ the range on upward inclined plane for the same velocity of projection and angle of projection.
10. The above figure shows the two equal forces at right angles acting at a point. The value of force R acting along their bisector and in opposite direction is