a) b) c) d) a) A car with a mass of 1000 kg starts from rest and accelerates at a constant rate until it reaches a speed of 15 m/s over a distance of 200 m. During the time it is accelerating, what is the net force acting on the car? A woman is skiing down a hill angled at 15 above the horizontal direction at a constant speed. What is the coefcient of friction between the snow and the woman's skis? A batter swings a bat and hits a baseball back to the pitcher. While the ball and bat are in contact the bat exerts a huge force on the ball. Is the force the ball exerts on the bat (a) smaller, (b) the same, or (0) larger than the force the bat exerts on the ball? While driving your car down the road at a constant velocity which is greater, the sum of all the forces acting in the forward direction or the sum of all the forces acting in the backwards direction? If your car has a net force in the easterly direction, what can you say about the velocity and acceleration of the car? A 2.5-kg object has an acceleration of LS m/s2 1/. There are two forces acting on the object. If one force is (8.2 N) ii 2.6 N j, what is the other force? Draw a free body diagram of this situation. A 2.5-kg block is resting still on a plane inclined at an angle of 25 with respect to the horizontal direction. Find the magnitude of the forces of gravity, the normal, and static friction? Can you nd the coefcient of static friction given this information