A 2.50kg ball rolls at 1.50m/s into a spring with a spring constant of 400.N/m. How much does the spring compress bringing the ball to a stop?

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?