What term means assisting or aiding?

FRQ Prompt 1: (Questions 1-9) Spacecraft A and B are flying parallel to each other through space and are next to each other at time t = 0. For the interval 0 < t < 6 s, spacecraft A’s velocity vA and spacecraft B’s velocity vB as functions of t are given by the equations vA(t) = t2 - 5t + 20 and vB(t) = t2 + 3t + 10, respectively, where both velocities are in units of meters per second. At t = 6 s, the spacecraft both turn off their engines and travel at a constant speed.

Calculate the elastic potential energy of the spring, in Joules just as the block is being released.

A truck begins at rest and moves with a constant acceleration of 2 m/s2 for a period of 10 s. It then cruises at a constant speed for an additional 10 s before slowing to a stop, again with acceleration of 2 m/s2. How far has the truck traveled during this trip?   

Determine the power of a 1300 kg car that can accelerate from 0 m/s to 27 m/s in just 5.20 seconds. 

  The first block is again brought to rest at equilibrium. An identical block is launched up into the first block. The new block is moving with a speed of v = 5.0 m/s when it collides with and sticks to the original block. Calculate the maximum compression of the spring, in cm, after the collision of the two blocks.

When a ball that is thrown vertically upward reaches its peak height: 

A 0.5 kg object is fired at an angle of 60° above the horizontal with an initial speed of 10 m/s. Determine the potential energy of the object at the peak of its trajectory?   

An 8 g coin is dropped from a height of 30 m. When does the coin reach the ground? ( g = 9.8 m/s2) 

The position of a particle is given by the function x(t) = 3t2 – 2t3. What is its average acceleration over the time interval from t = 0 to t = 3 s?