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- Which has a larger magnitude of momentum: a 3000-kg elephant moving at 40 km/h or a 60-kg cheetah moving at 112 km/h?If a rainstorm drops 1 cm of rain over an area of 10km2 in the period of 1 hour, what is the momentum of the rain that falls in one second? Assume the terminal velocity of a raindrop is 10 m/s.A hockey puck of mass 150 g is sliding due east on a frictionless table with a speed of 10 m/s. Suddenly, a constant force of magnitude 5 N and direction due north is applied to the puck for 1.5 s. Find the north and east components of the momentum at the end of the 1.3-s interval.
- Check Your Understanding Would the ball’s change of momentum have been larger, smaller, or the same, if it had collided with the floor and stopped (without bouncing)? Would the ball’s change of momentum have been larger, smaller, or the same, if it had collided with the floor and stopped (without bouncing)?A baseball of mass 0.15 kg moving horizontally with a momentum of 4.0 kgm/s is struck head-on by a baseball bat with an impulse of 10 N∙ s. What isthe speed of the baseball after it is struck?The change in momentum for the plate in this situation is fixed—1.125 kg m/s (your answerto question 10). The force of impact is very large, thereby breaking the plate. If the timewere larger than 0.00024 s, would the force of impact be larger or smaller than your answerto question 11.
- What is the force applied to a ball if the momentum increase by 1.91kgm/s every 3.67s?(a) What is the momentum of a garbage truck that is 1.20×104 kg and is moving at 10.0 m/s ? (b) At what speed would an 8.00-kg trash can have the same momentum as the truck?A car with a mass of 1500000 g has a velocity of 10 m/s, determine its momentum. Likewise, determine the momentum of a 0.200 kg ball with a velocity of at 40 m/s.
- How much momentum does a car of mass 1.214 kg have if it travels at a constant speed at 14.5 m/s?(a) A bullet with a mass of 2.82 g moves at a speed of 1.50 ✕ 103 m/s. If a baseball of mass 147 g has the same momentum as the bullet, what is its speed (in m/s)? m/sA pitcher claims he can throw a 0.140 kg with as much momentum as a 2.98-gbullet moving with a speed 1.50e3 m/s . What must the baseball's speed be if the pitcher's claim is valid?