A force of 6N acts horizontally on a stationary mass of 2kg for 4s. The kinetic energy gained by the mass is _________
a
366j
b
240j
c
144j
d
90j
Explanation
Correct Option
cVideo Explanation
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Discussions (10)

Hauwababy16
4 years ago
You can use linear momentum formula
F=m(v-u)/t
6=2(v-0)/4
U is zero bcos dey said mass is stationary
V=12ms^1
Then kinetic energy formula is
½mv²
=144J

Emmanuel333
6 years ago
nawaaaoh my school no options???
plesssssssssssssssssssssse do something about this...



