How much momentum does a car of mass 1,881 kg have if it travels at a constant speed of 6.9 m/s
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Q: A 38.4 kg kid is sledding down a hill at 6.3 m/s. What is his momentum?
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Q: What is the momentum of a stationary car whose speed limit is 60m/s?
A: Momentum =mass × velocity
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- The Hulk (200kg of pure angry muscle)collides head-on with a truck (2500kg). If the Hulk was running at 10.0m/s and the truck was moving at 15.0 m/s in the opposite direction, after they stick together, what is their speed (in m/s)? Either the Hulk or the truck needs a negative initial velocity.Two objects with different masses have the same momentum. The less massive object will have a greater kinetic energy. True or FalseMomentum = mass (Kg) times velocity (m/s). Why does a train longer to stop than a car?
- A guy running drops from a tower to the ground. The height of the tower is 8 m. (a) How fast is the person going when he hits the ground (assuming no air resistance)? (b) If the person's mass is 65 kg, what is his momentum when he hits the ground? (c) If he lands and bends his knees, he comes to rest in 0.2 sec. What force is being exerted on his legs to stop him?A club exerts an average force of +4,000 [N] for 0.5 [s] on a 3 [kg] rock. What is the total change in momentum of the rock?(All answer choices are in the standard SI unit for momentum).Question 15 The graph shows momentum, p, versus time, t, for a spacecraft while it is firing its rocket engines in space. What does the slope of this graph represent? K O the work done on the spacecraft the mass of the spacecraft the net force on the spacecraft the velocity of the spacecraft None of the above
- Joey has a mass of 50 kg and he is standing at rest on the friction-less ice. His partner tosses him a ball with a mass of 10 kg and a speed of 6 m/s. Joey catches the ball firmly and he slides backward on the ice with a speed of Which below? 4 m/s 1 m/s 6 m/sAn object is traveling such that it has a momentum of magnitude 20.3 kg · m/s and a kinetic energy of 243 J. Determine the following. (a) speed of the object in meters per second m/s (b) mass of the object in kilograms kg Additional MaterialsI need help with this homework problem.