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Physics Unit 5 CA - Conservation of 1. A student is pushing a car toward a gas station. They exert a constant force of 100 N on the car for 40 m bring the car from rest to 5 m/s. What is the mass of the
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24 votes
24 votes
Physics Unit 5 CA - Conservation of

1. A student is pushing a car toward a gas station. They exert a constant force of 100 N
on the car for 40 m bring the car from rest to 5 m/s. What is the mass of the car?

User FDuhen
by
2.5k points

1 Answer

13 votes
13 votes

Answer:

160 kg

Step-by-step explanation:

f = ma

100 = m * a

a = v/t

v = distanc/time

dist = 40m

time = 8 sec

v = 40/8

a = 40/(64)= 5/8

m = 100*8/5= 160 kg

User Manish Nautiyal
by
2.2k points
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