Question

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-!
​

Answer 1

Answer:

.5 m/s

Explanation:

ke=1/2 mv^2

so ans is 0.5