Answer:
Gravitational
Explanation:
When studying atoms, scientists can ignore the gravitational force between charged particles that make up the atoms because it is many millions of times smaller than other forces in the atom.
Answer:
200N appox
Explanation:
Step one:
Given data
mass of ball= 0.143kg
initial velocity of ball u= 42m/s
final velocity of the ball= 49m/s
time of impact= 0.005s
Step two
From the relation Ft=mΔv
we can find the average force as
F=mΔv/t
substitute
F=0.143*(49-42)/0.005
F=0.143*7/0.005
F=1.001/0.005
F=200.2
F= 200N appox
The average force is 200N
Answer:
C
Explanation:
acceleration is a change in velocity which means a time rate change in velocity but velocity is the time rate change in displacement
