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pcastaneda03
22.10.2020 •
Physics
Standing on the 1382 overpass, you look down onto highway 67. There is no traffic as the highway is shut down for construction. You take a marble and drop it to the highway below. You time the marble as if falls and it takes 1.3 seconds to hit the ground. How tall is the overpass? (In other words, what was the marbles displacement?)
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Ответ:
Ответ:
the car has greater momentum.
the car has greater kinetic energy.
Explanation:
FOR MOMENTUM:
Momentum is given as the product of mass and velocity of an object:
where,
P = momentum
m = mass
v = velocity
For Truck:
For Car:
Therefore, car has greater momentum.
FOR KINETIC ENERGY:
Kinetic Energy is given as:
where,
K.E = Kinetic Energy
m = mass
v = velocity
For Truck:
For Car:
Therefore, car has greater kinetic energy.