A car is traveling at 40 m/s and the 90 kg driver slams on the brakes to avoid a collision. If the car slows down to a velocity of 5 m/s and the
acceleration occurred in 2 seconds, how much force did the seatbelt
apply to the driver?

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

2. -/1 pointsserpse10 2.7.p.017.mi. an object moving with uniform acceleration has a velocity of 14.0 cm/s in the positive x direction when its x coordinate is 2.97 cm. if its x coordinate 2.85 s later is -5.00 cm, what is its acceleration? cm/s2 need ? read it master it

What is the temperature in degrees celsius of a substance with a tempature of 49k