Sam, whose mass is 75 kg takes off across level snow on his jet skis. The skies have thrust of 200N and a coefficient of kinetic friction on snow of 0.10. Unfortunately, the skies run out of fuel after only 10 seconds. What is Sam's top speed? (Hint: This solution has two steps) O 10 m/s O 32 m/s O 17m/s O 11 m/s O 25 m/s

Sometimes, steep roads going down have a small safety road by the side that goes up, which vehicules can use in an emergency, to slow down. A 3362.6 kg truck has lost its brakes coming down a mountain. Fortunately, there is a ramp of thick gravel inclined at 14 degrees that the driver can use to stop the truck. The truck hits the ramp moving at 20.58 m/s and then travels 35.6 meters up the ramp before it comes to a stop. What work is done by the gravel to stop the truck?

Suppose I need to  toss an object of mass 5.2 up onto a shelf 5.94 meters above where my hands can reach. What is the minimum speed of toss necessary to do this? Your answer should be in meters per second, but don't write teh unit, just the number. You can approximate the acceleration due to gravity at the earth's surface as 10 meters per square second.

A trap-jaw ant snaps its mandibles shut at very high speed, a good trait for catching small prey. But an ant can also slam its mandibles into the ground; the resulting force can launch the ant into the air for a quick escape. A 12 mg ant hits the ground with an average force of 47 mN for a time of 0.10 ms; these are all typical values. At what speed does it leave the ground? Answer out to 3 decimal places.

A bowling ball is dropped from the top of a building that has a height of h = 112 m. Part (a)  Assuming air resistance is negligible, what is the ball's speed, vf in m/s, when it strikes the ground?Part (b)  If drag produces an opposing force of 10 N while the ball's falling, what is the ball's speed, vf in m/s, when it strikes the ground? Assume the ball has a mass of 5 kg.Part (c)  A different ball was dropped and the final speed was measured to be vf = 8.5 m/s while the drag force was measured to be 50 Newtons. What is the mass of this ball in kg?

vo t = 0 t = 3.5 s vo = (2.5i + 3.5j) m/s i = (-2.51) m/s The velocity of a 3.0-kg object is shown at two times. What was the magnitude of the average force exerted on the object between t= 0 and t = 3.5s? O 1.74 N O 6.26 N O 14.7 N O 3.23 N O 0.845 N

44. A 15 kg child slides, from rest, down a play- ground slide that is 4.0 m long, as shown in the figure. The slide makes a 40° angle with the horizontal. The child's speed at the bot- tom is 3.2 m/s. What was the force of friction that the slide was exerting on the child? 傳 4.0 m 40°

Hide 42 Smarter Marks :: Sitti smartermarks.com 10. A model rocket is launched vertically. When its engine stops burning, it has a velocity of 110 m/s upward. Ignoring air drag, the rocket will travel a distance of m further before reaching its maximum height. (Record your answer in the numerical-response section below.) Your answer: 0000 11. A toy snowmobile has a mass of 21.0 kg and a velocity of 94.0 m/s directed at 10.0° N of E. The component of the snowmobile's momentum in the North direction is kg-m/s. (Record your answer in the numerical-response section below.) Your answer: 0000 Use the following information to answer the next three questions Object 1 with a mass of 4.80 kg, moving right at a speed of 8.60 m/s along a frictionless surface, collides head-on with Object 2 with a mass of 3.70 kg moving left at a speed of 10.8 m/s. After the collision, the Object 1 is moving left at 2.20 m/s. 12. The final speed of object 2 would be m/s. Answer to 3 sig digs. (Record your answer in…