A basketball player makes a jump shot. The 0.600-kg ball is released at a height of 2.04 m above the floor with a speed of 7.43 m/s. The ball goes through the net 3.10 m above the floor at a speed of 4.17 m/s. What is the work done on the ball by air resistance, a nonconservative force?

A 230 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 1.3 N/cm (see the figure). The block becomes attached to the spring and compresses the spring 14 cm before momentarily stopping. While the spring is being compressed, what work is done on the block by (a) the gravitational force on it and (b) the spring force? (c) What is the speed of the block just before it hits the spring? (Assume that friction is negligible.) (d) If the speed at impact is doubled, what is the maximum compression of the spring? (a) Number (b) Number (d) Number 3155 - 1.274 (c) Number 2.88 9 Units Units Units J J m/s Units m/s

A 3.5-kg object falls vertically downward in a viscous medium at a constant speed of 1.5 m/s. How much work is done by the force the viscous medium exerts on the object as it falls 50 cm?   Question 11 options:   +2.0 J   -8.5 J   +17 J   −17.0 J   −32 J

A 65.70 kg baseball player begins his slide into second base when moving at a speed of 6.090 m/s. The coefficient of friction between his clothes and the earth is 0.7480. How much work (in Joules) is done on the runner as he slides to a stop?