HEL PLEAS A body is projected with an initial velocity of 40 m/s at an angle of
30 degree to the horizontal. It will cross a pole of height 20.4 m in seconds. Show work

Estimate the kinetic energy of the neptune with respect to the sun as the sum of the terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. [assume the neptune is a uniform sphere with mass = 1.0×1026 kg , radius = 2.5×1010 m , rotation period 16.1 h , orbital period 6.01×104 d and is 4.6×109 km from the sun.]