Answer:
D. Drawing a conclusion about something
45km/h * 0.5h= 22.5km
The car can travel 22.5km in 0.5 hours
Answer:
Chess
Explanation:
Chess is considered a sport
Answer:
(d) a net external force must be acting on the system
Explanation:
Momentum is given as the product of mass and velocity.
P = MV
According to Newton's second law of motion, " Force applied to a body (system) is directly proportional to the rate of change of momentum of the body (system) which takes place in the direction of the applied force (external force).
F ∝ΔMV
Therefore, If the total momentum of a system is changing, a net external force must be acting on the system.
(d) a net external force must be acting on the system
It's moving, in a straight line and at a constant speed. It can't be accelerating.
