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A model rocket is constructed with a motor that can provide a total impulse of 36.0 N.s. The mass of the rocket is 0.112 kg. What is the speed that this rocket achieves when it is launched from rest? Neglect the effects of gravity and air resistance. Number i Units ..
A 0.0110-kg bullet is fired straight up at a falling wooden block that has a mass of 3.59 kg. The bullet has a speed of 651 m/s when it strikes the block. The block originally was dropped from rest from the top of a building and had been falling for a time t when the collision with the bullet occurs. As a result of the collision, the block (with the bullet in it) reverses direction, rises, and comes to a momentary halt at the top of the building. Find the time t. Number Units
Batman (mass = 92.7 kg) jumps straight down from a bridge into a boat (mass = 632 kg) in which a criminal is fleeing. The velocity of the boat is initially +8.75 m/s. What is the velocity of the boat after Batman lands in it? Number i 9 Units
Two stars in a binary system orbit around their center of mass. The centers of the two stars are 6.40x10¹1 m apart. The larger of the two stars has a mass of 3.63x1030 kg, and its center is 2.00x1011 m from the system's center of mass. What is the mass of the smaller star? i