Question

A cart is set rolling across a level table, at the same speed on every trial. If it runs into a patch of sand, the cart exerts on the sand an average horizontal force of 6 N and travels a distance of 6 cm through the sand as is comes to a stop. If instead the cart runs into a patch of flour, it rolls an average of 18 cm before stopping. What is the average magnitude of the horizontal force the cart exerts on the flour?
(a) 2N
(b) 3N
(C) 6N
(d) 18 N​

Answer 1

Answer:w = ΔK.E. 3. The attempt at a solution I basically found that 6N(.06) = .36 J for the sand part of it and set that answer to 9N * x = .36J and got the right answer but i don't know if i got the right answer because of the right reasons. My thinking was that if the mass and velocity of both carts are the same then the change in kinetic energy is ultimately going to be the same but

Explanation:hope helps u plz mark me as the brainliest