A bicycle rider sees a car up ahead, and slows down to avoid a collision. He starts off traveling at 15 m/s and slows down to 5 m/s in 7.5 s. Find the acceleration of the bike rider.

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?

The total amount of energy contained in an object

If anyonee has done the momentum lab practical in physics can you give me the answers i am s lostt rnn : (