<h2>
The magnitude of the average force acting on the ball during the collision is 340.57 N</h2>
Explanation:
Force is given by rate of change of momentum.
Mass of bullet = 555 g = 0.555 kg
Initial velocity = 14.9 m/s
Final velocity = -12.1 m/s - Opposite direction
Change in momentum = 0.555 x 14.9 - 0.555 x (-12.1)
Change in momentum = 14.985 kg m/s
Time taken = 0.044 s
Rate of change of momentum = Change in momentum ÷ Time
Rate of change of momentum = 14.985 ÷ 0.044
Rate of change of momentum = 340.57 N
Force = 340.57 N
The magnitude of the average force acting on the ball during the collision is 340.57 N
Fluid Friction exists when it is acted upon an object when in fluid.
The bicycle and the person on it are in motion. therefore anything is motion has energy.
<span>B is the correct answer. Neutrons have no charge. In contrast, protons are positively charged and electrons have negative charge. These charges are all relative to each other. The protons and neutrons can be found inside the atom of an element. Electrons float around the outside.</span>
Answer: v = 20 m/s
Explanation: Solution:
Use the formula of Kinetic Energy and derive for v:
KE = 1/2 mv²
To find v:
v = √ 2 KE / m
= √ 2 ( 100000 J ) / 500 kg
= √ 400 m/s
= 20 m/s
