Two vehicles approach a right angle intersection and then collide. After the collision, they become entangled. If their mass ratios were 1:4 and their respective speeds as they approached were both 13 m/s, find the magnitude and direction of the final velocity of the wreck.
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- (a) Calculate the x and y components of ball 1’s momentum before and after the collision. The mass of each pool ball is 0.16 kg. Remember that momentum is a vector quantity and the signs of the components indicate the direction of travel. (b) Use a before and after analysis to calculate the x and y components of ball 2’s velocity after the collision.If a mass of 1 kg with an initial velocity of 4 m/s to the right collides elastically with a mass of 3 kg going 1 m/s to the left, what will be the velocity of the first mass after the collision? Right is positive, left is negative. Options include: + 1.0 m/s -2.5 m/s -1.5 m/s -3.5 m/sConsider two cars that are on course for a head-on collision. If they have masses m1 = 1,100 kg and m2 = 1,800 kg and are both traveling at 27 m/s, what is the magnitude of the total momentum?
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- A 0.230 kg billiard ball that is moving at 3.70 m/s strikes the bumper of a pool table and bounces straight back at 2.96 m/s (80% of its original speed). The collision lasts 0.0200 s. (Assume that the ball moves in the positive direction initially.) (a)Calculate the average force (in N) exerted on the ball by the bumper. (Indicate the direction with the sign of your answer.) Answer _____________ N (b)How much kinetic energy in joules is lost during the collision? (Enter the magnitude.) Answer_______________J (c)What percent of the original energy is left? Answer ________________ %A 0.05 kg ball strikes a wall with a velocity v1 = -25 m/s and bounces back with a velocity v2 =5 m/s. If the collision lasts 0.2 s, then find the average force (in N) exerted on the ball.A 10.1-g bullet is fired into a stationary block of wood having mass m = 4.90 kg. The bullet imbeds into the block. The speed of the bullet-plus-wood combination immediately after the collision is 0.597 m/s. What was the original speed of the bullet? (Express your answer with four significant figures.) |m/s