You travel by car from one city to another. You drive for 30 minutes at 80 km/hr then 12 minutes at 112 km/hr, and 45 minutes at 40km/hr. You spend 15 minutes buying gas and eating a snack. What was your average speed for the trip? What was the distance you traveled?

Arocket starts from rest and moves upward from the surface of the earth. for the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay = 12.80 m/s32t, where the +y-direction is upward. (a) what is the height of the rocket above the surface of the earth at t = 10.0 s? b) what is the speed of the rocket when it is 325 m above the surface of the earth?

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

Coal contains energy. a. light b. kinetic c. chemical d. mechanical