A 1,000 kg car is travelling at 6.5 m/s to the North. A 3,500 kg truck is also travelling North at the same velocity. What is the total momentum of the two vehicles? please help asap

Write the correct abbreviation for each metric unit

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to: