You toss an apple across the room to a friend. Which of the following
1 answer:
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Answer:
Velocity
Explanation:
Kinetic Energy of a body can be defined as the amount work needed to accelerate a body of mass, m, from a position of rest to a particular velocity.
It is also the energy possessed by a body due to its motion.
Mathematically, it is given as:
As seen from the formula, the Kinetic energy is dependent on the mass of the body, m, and the square of the velocity, v.
Typically, the mass of an object is a constant value, hence, the kinetic energy varies as velocity varies.
Answer:
Initial velocity of the bullet will be 307.63 m /sec
Explanation:
We have given that mass of the bullet 7.87 gram m= 0.00787 kg
Mass of the block M = 4.648 kg
So total mass M+m = 4.648 +0.00787= 4.655 kg
Spring constant k = 142.7
Compression x=9.46 cm = 0.0946 m
Now according to energy conservation
So initial velocity of the bullet will be 307.63 m /sec