Answer on Mechanics | Relativity Question for Cas
A cat is running with a horizontal velocity of 2 m/s. It can't stop in time and flies off the edge of a 1.5 m high counter. All of the following statements are true about the cat except
a. its acceleration in the x-direction is -9.8 m/s2
b. its velocity in the x-direction just before it hits the ground is 2 m/s
c. its initial velocity in the y-direction is zero
d. its velocity in the x-direction just before it hits the ground is zero
Which object would have more kinetic energy, a 50 kg person running 10 m/s or a 50 kg person running 15 m/s?
Two weightlifters are each able to lift 120 kg. One is able to lift it in 1.2 seconds and the other is able to lift it in 1.8 seconds. Which person generated more power?
Two moving cars stick together after colliding. What must be true about the cars?
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