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Newton's laws and momentum Typeit
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On an alien planet, a space probe falls down the planet's surface, accelerating from 20 m s-1 to 50 m s-1 in 1.3 s. The mass of the probe is 550 kg. The force acting on the probe is kN.
A submarine's engines provide a thrust of 8.8 kN, against a deep ocean current, which causes the submarine to decelerate at a rate of -2.1 m s-2. The submarine has a mass of 9300 kg. The force exerted by the current on the submarine is kN.
A 2160 kg car drives slowly at 5.04 km h-1. The momentum of the car is kg m s-1.
A 220 kg ice raft floats along the surface of the sea at 0.35 m s-1. A 130 kg seal swims up to the raft at a speed of 1.1 m s-1 in the same direction as the raft is moving and jumps on. The speed of the raft after the seal has jumped on is m s-1.
In the same stretch of ocean, two blocks of ice approach each other and collide. The larger ice block has a mass of 1030 kg, and initially travels at 1.40 m s-1 to the left. The smaller ice block has a mass of 805 kg and initially travels at 0.640 m s-1 to the right. After colliding, the larger ice block travels at 0.200 m s-1 to the right, and the smaller ice block travels at m s-1 to the .
A bird beats its wings, producing a change in momentum of 0.056 kg m s-1 over 0.93 s. The force exerted by the bird beating its wings is N.
A rocket accelerates from 37 m s-1 to 49 m s-1 over 3.4 s. The force exerted by the rocket's thrusters is 41 kN. The mass of the rocket is kg.
A submarine's engines provide a thrust of 8.8 kN, against a deep ocean current, which causes the submarine to decelerate at a rate of -2.1 m s-2. The submarine has a mass of 9300 kg. The force exerted by the current on the submarine is kN.
A 2160 kg car drives slowly at 5.04 km h-1. The momentum of the car is kg m s-1.
A 220 kg ice raft floats along the surface of the sea at 0.35 m s-1. A 130 kg seal swims up to the raft at a speed of 1.1 m s-1 in the same direction as the raft is moving and jumps on. The speed of the raft after the seal has jumped on is m s-1.
In the same stretch of ocean, two blocks of ice approach each other and collide. The larger ice block has a mass of 1030 kg, and initially travels at 1.40 m s-1 to the left. The smaller ice block has a mass of 805 kg and initially travels at 0.640 m s-1 to the right. After colliding, the larger ice block travels at 0.200 m s-1 to the right, and the smaller ice block travels at m s-1 to the .
A bird beats its wings, producing a change in momentum of 0.056 kg m s-1 over 0.93 s. The force exerted by the bird beating its wings is N.
A rocket accelerates from 37 m s-1 to 49 m s-1 over 3.4 s. The force exerted by the rocket's thrusters is 41 kN. The mass of the rocket is kg.