A body is projected from aa point such that the horizontal and vertical components of its velocity are and respectively . (Take g = ) i. Calculate the greatest height attained above the point of projection

A.600m B.1215 m C.1521 m D. 11520m E. 20480m

II. If the time of flight is 96 seconds , Calculate the horizontal range through the point of projection.
A.84400m B.69000m C.61440m D.24000m E.640m

Aleaky 10-kg bucket is lifted from the ground to a height of 15 m at a constant speed with a rope that weighs 0.7 kg/m. initially the bucket contains 45 kg of water, but the water leaks at a constant rate and finishes draining just as the bucket reaches the 15-m level. find the work done. (use 9.8 m/s2 for g.) show how to approximate the required work by a riemann sum. (let x be the height in meters above the ground. enter xi* as xi.) lim n → ∞ n (9.8)(45−3 xi) i = 1 δx express the work as an integral. 0 dx evaluate the integral. (round your answer to the nearest integer.) j