When the stone collided they were in contact for a time of 25ms. Calculate the magnitude of the force stone a exerted on stone b in this collision. Please answer if yk

Idon’t quite understand this problem

Aperson walking 1 mile everyday for exercise, leaving her front porch at 9: 00 am and returning to her front porch at 9: 25 am. what is the total displacement of her daily walk? a) 1 mileb) 0c) 25 minutes d) none of the above

There are two routes similar in terrain; however, one route has an incline of approximately 28 degrees, and you must decide on which route to take. what is the maximum road grade that your fully loaded ecv can climb?