Answer:
mass equals 375 kg
Explanation:
f=ma
f=7500
a=20
m=f/a
m=7500/20
m=375
1500 kg is the mass of the car.
Newton's second law of motion describes the relationship between an object's mass and the amount of force needed to accelerate it.
Newton's second law is often stated as,
F=ma, which means the force (F) acting on an object is equal to the mass (m) of an object times its acceleration (a).
According to the question,
Mass = 20m/s , Time = 4s , Force = 7500 N
a = Δv/Δt
a = 20m/s / 4s
a = 5 m/s²
If F = ma then,
7500 N = m x 5 m/s²
m = [tex]\frac{7500 N }{ 5m/s^{2} }[/tex]
m = 1500 kg
Therefore,
1500 kg is the mass of the car.
Learn more about Newton's second law of motion here:
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