A bus of mass 2000 kg is travelling at 40 ms−2. sees a red traffic light ahead, and slows to a halt in −110 s. Calculate the braking force provided by the car

You throw a baseball directly upward at time t = 0 at an initial speed of 12.3 m/s. what is the maximum height the ball reaches above where it leaves your hand? at what times does the ball pass through half the maximum height? ignore air resistance and take g = 9.80 m/s2.

If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)