Which option would you prefer if the rocks were to fall out one by one through a hole in the car's floor?
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Which option would you prefer if the rocks were to fall out one by one through a hole in the car's floor?
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- finding the center of mass of the lamina when the square portion of the lamina has twice the density of the circular portion of the laminaThe center of mass of a solid bounded by the planes z = 1 – y , z = 0 and y = Vx where density 8(x,y, z) = y_ is :=1-yTwo cars collide at an intersection. If the cars do not stick together,can we conclude that their collision was elastic? Explain.
- 1. Calculate the location of center of mass of the system of 4 point masses as shown in the Figure. 4 kg 2 kg 5 m 4 m 4 m/ 8 kg 5m 6 kgThe purpose of a sand barrel/crash cushion is to increase: a impulse b force C collision time d momentumIf you drop a ball onto a surface from a height of 1 meter and the ball rebounds to a height of 32 centimeters, what is the coefficient of elasticity for the ball?
- 4. Object A, whose center is at (2.0m, 2.0m) has a mass of 40 kg. Object B has its center at (10m, 4.0m) and has a mass of 30 kg. What is the x component of their center of mass in m? a) 2.9 6. b) 5.4 B c) 6.1 4. d) 6.3 A e) 6.7 2 8. 10 12 x (m) 6. 2) (w)m)"A 1-kg car travelling at 30 m/s decelerates coming to stop in 5 seconds, as a result of applying the break. What is the impulse experienced by the car?" 6000 Ns 18000 NS 12000 Ns 24000 Ns None of theseTwo cars are driving at 25 mph and one of them hits a brick wall and stops immediately. The other one runs into a pile of old beanbag chairs and slowly comes to a stop. Which one has the greater impulse? The one hitting the wall The one hitting the beanbags They both have the same impulse
- ralledhuo Problem - 4P9 Find the CM locations of the following thin sticks, each of mass M and length L, whose left ends are at x = 0. (a) A stick with uniform mass density A = 2M/3L along the left half, and with uniform mass density A2 = 4M/3L along the right half. (b) A stick whose mass per unit length A increases quadratically with distance from the origin: i.e., A = k(x/L)², where k is a constant. %3Dboy of mass 50kg is standing on a frictionless surface. He throws a ball of mass 2kg away from him with a speed of 10m/s. Find the final speed of the centre of mass. a) 0m/s b) 20m/s c) 10m/s d) 0.4m/sWhich of the following explains why when we land on our feet, we naturally bend our knees? : think about the relationship between force, impulse, and time.