- #1
Wanting to Learn
Hello, since this is a new topic in class I just want to check that I am doing the question correctly.
Given:
car mass = 710kg
starts from rest
v0 = 0
travels 40.0m in 3.0s
d = 40.0m
t = 3.0s
Question:
What is the net force exerted on the car?
F = ___N
Work:
First I calculated acceleration:
d = v0t + 0.5at2
40 = 0 + 0.5a32
40 = 4.5a
a = 8.888 => 8.9
Then force:
F = m•a
F = 710•8.9
Answer:
F = 6319N
Is this correct? Thank you in advance.
Given:
car mass = 710kg
starts from rest
v0 = 0
travels 40.0m in 3.0s
d = 40.0m
t = 3.0s
Question:
What is the net force exerted on the car?
F = ___N
Work:
First I calculated acceleration:
d = v0t + 0.5at2
40 = 0 + 0.5a32
40 = 4.5a
a = 8.888 => 8.9
Then force:
F = m•a
F = 710•8.9
Answer:
F = 6319N
Is this correct? Thank you in advance.