2) In the picture below ma starts out from rest 1.5m above the ground. The mass of m is 3kg and m2 is 2kg. How fast is m moving when it hits the ground?

Can somebody explain to me how newton's 3rd law relates to momentum? ~ap physics 1

Anne applies a force on a toy car and makes it move forward. what can be said about the forces acting on the toy car at the moment anne applies the force?

An electric power distributor charges residential customers $0.10 per kilowatt-hour (kwh). the company advertises that "green power" is available in 150 kwh blocks for an additional $4 per month. (green power is generated from solar, wind power, and methane sources.) if a certain customer uses an average of 391 kwh per month and commits to one monthly 150 kwh block of green power, what is her annual power bill