A rocket of mass 3.87 105 kg is in flight near earth's surface. Its thrust is directed at an angle of 54.2 above the horizontal and has a magnitude...

A rocket of mass 3.87 × 105 kg is in flight near earth's surface. Its thrust is directed at an angle of 54.2 ° above the horizontal and has a magnitude of 9.78 × 106 N. Find the (a) magnitude and (b) direction of the rocket's acceleration. Give the direction as an angle above the horizontal.