Two spacecraft are 23,500 m apart and moving directly toward each other. Spacecraft#1 has velocity 520 m/s and accelerates at a constant -15.5 m/s2. They want to dock, which means they have to arrive at the same position at the same time with zero velocity. These aliens are watching in anticipation. (a) What should the initial velocity of the spacecraft#2 be? (b) What should be #2 constant acceleration? (Hint start with spacecraft #1)

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.

your answer is c! hope this : )