QUESTION 1 2 points Same Answer A motorcycle and the rider have a combined mass of 300.0 kg. The rider applies the brakes, causing the motorcycle to accelerate at -5.00 m/s*2. What is the magnitude of the net force on the motorcycle? QUESTION 2 2 points Save Answer As a baseball is being caught, its speed goes from 20.0 to 0 m/s in about 0.00750 s. Its mass is 0.185 kg. (a) What is the baseball's acceleration (Mind the sign!)? QUESTION 3 2 points Save Answer As a baseball is being caught, its speed goes from 20.0 to 0 m/s in about 0.00750 s. Its mass is 0.185 kg. (b) What is the magnitude of the force acting on it? QUESTION 4 3 points Save Answer Three sled-dogs pull on a sled on snow. The sled is initially moving at a speed of 12.5 m/s when the dogs start pulling harder for about 1.25 s, causing the sled to move with a final speed 18.0 mis. If the sled has a total mass of 458 kg, what is the force exerted by the dogs on the sled in this time interval? QUESTION 5 2 points Save Answer At the end of an amusement park ride, it is desirable to bring a gondola to a stop without having the acceleration exceed 2g (This means twice the acceleration of gravity). If the total mass of the gondola and its occupants is 2,000 kg, what is the maximum allowed force? QUESTION 6 2 points Save Answer A 0.100-kg ball is attached to a string and whirled around in a horizontal circle overhead on it exceeds 60.0 N. What is the maximum speed the ball can achieve if the radius is 1.00 m? QUESTION 7 4 points Save Answer A space probe is launched from Earth, headed for deep space. At a distance of 10,000 miles from the Earth's center, the gravitational force on the probe is 600 lb. What is the size of the force when the probe is at each of the following distances? (a) 20,000 mi b) 30,000 mi (c) 100,000 mi For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 10pt