2.
In the calculation of kinetic energy of a body, a student has taken the formula wrongly as
KE = -mv but he got numerically correct answer. The velocity of the body is
a) 0.5 ms-
b) 0.05 ms-1
c) 1 ms
d) 2 ms-!
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2.
In the calculation of kinetic energy of a body, a student has taken the formula wrongly as
KE = -mv but he got numerically correct answer. The velocity of the body is
a) 0.5 ms-
b) 0.05 ms-1
c) 1 ms
d) 2 ms-!
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Answer:
.5 m/s
Explanation:
ke=1/2 mv^2
so ans is 0.5