2. Two drivers traveling side-by-side at the same speed suddenly see a deer in the road ahead of them and begin braking. Driver 1 stops by locking up his brakes and screeching to a halt; driver 2 stops by applying her brakes just to the verge of locking, so that the wheels continue to turn until her car comes to a complete stop. (a) All other factors being equal, is the stopping distance of driver 1 greater than, less than, or equal to the stopping distance of driver 2? (b) Choose the best explanation from among the following: I. II. III. Locking up the brakes gives the greatest possible braking force. The same tires on the same road result in the same force of friction. Locked-up brakes lead to sliding (kinetic) friction, which is less than rolling (static) friction.

A door 2.30 m high and 1.30 m wide has a mass of 10.0 kg. A hinge 0.40 m from the top and another hinge 0.40 m from the bottom each support half the door's weight (Figure 1). Assume that the center of gravity is at the geometrical center of the door. Submit Previous Answers Correct Part B Determine the vertical component of the force exerted by hinge A on the door. Figure Express your answer to two significant figures and include the appropriate units. Enter positive value if the force is upward and negative value if the force is downward. HÀ 140 cm 2.30 m A FAy = Value Units y Submit Previous Answers Request Answer 1 30 m

The measurement 4500.00 cm has how many significant figures? a) 6 b) 2 c) 3 d) 5

could you upload this as a picture as text solutions arent readable