Answer:
The work done on the object by the force accelerating it is 520.31 J
Explanation:
Given;
mass of an object = 4.3 kg
horizontal velocity of the object, v = 11 m/s
time of acceleration, t = 3.4 s
work done is given as the product of force and distance
Work done = Fd
horizontal distance traveled by the object within 3.4 s, is calculated as follows;
X = Vt + ¹/₂gt², gravity has little or no influence on horizontal displacement, thus g = 0
X = Vt
X = 11*3.4 = 37.4 m
Force on the object, F = ma = m(v/t) = 4.3(11/3.4) = 13.912 N
work done = Fd = 13.912 x 37.4 = 520.31 J
Therefore, the work done on the object by the force accelerating it is 520.31 J
