What is the difference between speed and velocity? Speed is rate of motion of an object and velocity is what direction Speed is
1 answer:
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Answer: B) exactly the same as the initial momentum.
Explanation:
An inelastic collision occurs when the elements that collide remain together after the collision, and althogh the kinetic energy is not conserved because is transformed into other kinds of energy (thermal energy, for example), the linear momentum does.
This means the initial momentum before the collision will be equal to the final momentum after the collision:
Explanation:
At a height of 93 m, the gravitational potential energy is given by :
P = mgh
Where, m is the mass of a penny
We can find its mass.
We need to find how much potential energy will have transformed into kinetic energy at the half way point (46.5m). It can be calculated as :
Hence, a penny will have transferred 1.499 J of potential energy into kinetic energy.