Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Physics
Physics
Problem
A car of mass
500
kg
500\,\text{kg}
500
kg
starts from rest on a level road with its engine working at a constant power output of
20
kW
20\,\text{kW}
20
kW
. Assuming negligible friction, the time taken by the car to cover the first
200
m
200\,\text{m}
200
m
is nearest to a)
16.0
s
16.0\,\text{s}
16.0
s
b)
10.4
s
10.4\,\text{s}
10.4
s
c)
13.0
s
13.0\,\text{s}
13.0
s
d)
8.0
s
8.0\,\text{s}
8.0
s
Browse the problem library