A 1500 kg car traveling 5.0 m/s collides head on with a 500 kg moose traveling 1.0 m/s in the same direction. Assuming the collision is inelastic, what is the velocity of the car and the moose together immediately following the collision? m/s V OK I'll come back later
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- A 0.450-kg ice puck, moving east with a speed of 5.60 m/s , has a head-on collision with a 0.990-kg puck initially at rest. Assume that the collision is perfectly elastic. A.What is the speed of the 0.450-kgkg puck after the collision? B.What is the direction of the velocity of the 0.450-kgkg puck after the collision? C.What is the speed of the 0.990-kgkg puck after the collision? D.What is the direction of the velocity of the 0.990-kgkg puck after the collision?I am not sure if the answe is C or EIn a perfectly inelastic one-dimensional collision between two objects, what initial condition alone is necessary so that a the system is gone after the collision? O The objects must have momenta with the same magnitude but opposite directions. medi ume O The objects must have the same mass. O The objects must have the same velocity. O The objects must have the same speed, with velocity vectors in opposite directions. AC
- Ⓒ Macmillan Learning Two particles approach each other with equal and opposite speed, v. The mass of one particle is m, and the mass of the other particle is nm, where n is just a constant factor. Snapshots of the system before, during, and after the elastic collision are shown. m V Before V What is the value of n? nm Collision V m,final m n = After the collision, the first particle moves in the exact opposite direction with speed 2.40v, and the speed of the second particle, Unm, final, is unknown. 68 After Incorrect nm nm,finalA truck with a mass of 1600 kg and moving with a speed of 13.5 m/s rear-ends a 585 kg car stopped at an intersection. The collision is approximately elastic since the car is in neutral, the brakes are off, the metal bumpers line up well and do not get damaged. Find the speed of both vehicles after the collision in meters per second. V car 6.27 m/s V truck = 19.77 X m/sm₁ The figure shows two carts before a collision; cart m₁ is moving with velocity vo toward cart m₂ at rest. The carts slide without friction on the air track. (A) If the carts stick together when they collide, what will the final velocity be? m2 (B) If the carts collide elastically, what will the final velocity of cart C₂ be? DATA: m₁ = 1.3 kg; m₂ = {inelastic : } (in m/s) 1.7 kg; {elastic: } (in m/s) Vo = 2.5 m/s; OA: 1.083 B: 1.268 OC: 1.483 OD: 1.735 OE: 2.030 OF: 2.375 OG: 2.779 OH: 3.251 A: 1.608x10-¹B: 2.331x10-¹ OC: 3.380x10-¹ OD: 4.901x101 OE: 7.107x10-¹ OF: 1.031 OG: 1.494 OH: 2.167
- A 70.0 kg ice hockey goalie, originally at rest, has a 0.280 kg hockey puck slapped at him at a velocity of 43.5 m/s. Suppose the goalie and the puck have an elastic collision, and the puck is reflected back in the direction from which it came. What would the final velocities ?goalie and ?puck of the goalie and the puck, respectively, be in this case? Assume that the collision is completely elastic.A rutber bell and a clay ball have oqual mass and are dropped onto a digital scale. The rubber ball bounces back to nearly the same height. The clay bell sticks to the scale when it hits. For the (single) imeraction with the scale. a. Whar is the ratio af the change of the clay ball's momentum to the change of the rubber ball's momentum? b. What is the ratio of the impulse impaned to the clay ball to the impulse imparted so the rubber ball? Iruter c. Which of the following graphs could epresent, o the same scale, the force exerned by the scale on each ball as a function of time? Select an answer for the rubber ball and an ansaer for the clay ball. F(N) F(N) F(N) I (s) I (s) 1 (s) F(N) F(N) clay ball: rubber ball: B) 1 (s) D) I (s)