a) Two carts with equal mass travel towards each other with speeds 5ms and 2ms respectively. If the carts coalesce (combine) after the collision what is the new speed of the two carts. b) Find the % change in the amount of kinetic energy after the collision
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- A 500Kg Ford focus automobile is initially travelling at vi, focus=(60i + 20j)Km/hr when it inelastically collides with a 16.7Mg semitruck initally traveling at vi,truck=(-30i-110j)Km/hr. problems: a) what is the final velocity immediately after the inelastic collision? b) assume that, just after the collision , the ford focus and semitruck begin to slide across the pavement due to a uniform kinetic friction with coefficient uk=0.45. how far will they slide before coming to a stop.A curiosidade child stands on the top of a 670 m Skyscraper and Drops a coin from the top of the building. How fast is the coin moving when it hits the ground. Solve using conservation of momentumball 1 (1kg) moves at 1m/s strikes stationary ball 2 (1kg). Ball 1 stops, ball 2 moves away at 1m/s. Is momentum,KE, or both coversed? Explain. Is this elasic collision or inelastic collison?
- A 9,700-kg truck runs into the rear of a 1,000-kg car that was stationary. The truck and car are locked together after the collision and move with speed 2 m/s. Compute how much kinetic energy was "lost" in this inelastic collision in J.Answer question 8You have a mass of 72kg. If you slide on ice at 3.6m/s to greet a 40kg friend who is standing still. As you collide while holding hands what would be there speed do you both move off together