1. If a car is traveling at 45 m/s and it's mass is 1,232 kg, find the kinetic energy of the car .
2. If a ball falls from the sears tower and hits the ground at 72 m/s what is it's kinetic energy if the balls mass is 7.2 kg.
3.What has more kinetic energy a speeding bullet or a locomotive? The bullet's mass is .0012 kg and it's velocity is 1503 m/s. The train is moving west at 2.1 m/s and has a mass of 1,225,662,342 kg.
4. A man working to build a skyscraper is up 645.2 m and his mass is 98.1 kg. what is his gravitational potential energy?
5. A woman is standing 754 meters above the floor of the grand canyon looking out over the edge. She has a mass of 57 kg and has a parachute on in case she falls. What is her gravitational potential energy?
2. If a ball falls from the sears tower and hits the ground at 72 m/s what is it's kinetic energy if the balls mass is 7.2 kg.
3.What has more kinetic energy a speeding bullet or a locomotive? The bullet's mass is .0012 kg and it's velocity is 1503 m/s. The train is moving west at 2.1 m/s and has a mass of 1,225,662,342 kg.
4. A man working to build a skyscraper is up 645.2 m and his mass is 98.1 kg. what is his gravitational potential energy?
5. A woman is standing 754 meters above the floor of the grand canyon looking out over the edge. She has a mass of 57 kg and has a parachute on in case she falls. What is her gravitational potential energy?
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I should tell you, before it gets embarrassing, that the Sears Tower is now known as Willis Tower.
Also, K = 1/2*m*(dx/dt)^2, ignoring relativistic effects.
Also, K = 1/2*m*(dx/dt)^2, ignoring relativistic effects.