At time t1 = 14 s, a car is located at 99, 80, 27 m and has velocity 4, 0, −3 m/s. at time t2 = 18 s, what is the position of the car? (the velocity is constant in magnitude and direction during this time interval.)

To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.