What is the energy E required to accelerate a 1545 kg car from rest to 29 m/s? E = Compared to the amount of energy required to accelerate a car from rest to 29 m/s, how much energy is required to accelerate the car from 29 m/s to twice that speed, 58 m/s? O three times as much O four times as much O twice as much O the sameA box of mass M is pushed a distance Ax across a level floor Ax by a constant applied force F. The coefficient of kinetic F M friction between the box and the floor is M. Assuming the box starts from rest, express the final velocity uf of the box in terms of M, Ax, F, M, and g. 2(PL - uMgL) Uf M IncorrectA single, nonconstant force acts in the +xdireetion on an object of mass m that is constrained to move along the xaxis. As a result, the object's position as a function of time is x(t) =p+qt+rt3 How much work W is done by this force from r = 0 s to nal time T? Express the answer in terms of p, q, r, m, and T. \f* = 1545 kg v = 29mis O U 20 V = 29 E = d my z 9 E - x 15 45 x129 )2 E . = 6 4 9 6 7 9 , 5 J When velocity - 58 m /s E = 1 X 1 5 4 5 X 5 8 x 5 8 Ezz 2 59 8 6 90 J Ez = 4 E