1. Applying more force and energy, speeding up
2. Releasing potential and kinetic energy by going down a slope, speeding up
3. Applying less force to slow down and let friction overcome the bicyclist
Answer:
Friction is a surface force that opposes relative motion.
kinetic energy or potential energy
sorry idek i learned this like 2 years ago
Answer:
The velocity of astronaut will be 0.105 m/s in opposite direction of the tool.
Explanation:
Given that,
Mass of the Astronaut, m = 68.5 kg
Mass of the the tool, m' = 2.25 kg
Speed of tool, v' = -3.2 m/s (direction is sway from space station)
It is required to find the speed of the astronaut. The momentum will remain conserved. So,

v is the speed if Astronaut

So, the velocity of astronaut will be 0.105 m/s in opposite direction of the tool.