Help please! will give brainliest to the correct answer.

question; the work one by friction force to stop a car of mass 1000 kg moves with velocity 72km/h is

a) 72 x 10³ J

b) 2 x 10⁴ J

c) 2 x 10⁵ J

d) 4 x 10⁵ J

an explanation for future reference would be appreciated^^

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply