Correct Answer - Option 1 : 10.0 m/s
CONCEPT:
Kinetic energy
- The energy possessed by a body due to the virtue of its motion is called kinetic energy.
\(⇒ KE=\frac{1}{2}mv^{2}\)
Where KE = kinetic energy, m = mass and v = velocity
CALCULATION:
Given: Mass of the object (m) = 2000 g = 2 Kg and Kinetic energy (KE) = 100 J
- The kinetic energy of the body is
\(⇒ 100=\frac{1}{2}\times 2\times v^{2}\)
- The object must be moving at a speed of
\(\Rightarrow v^2=\frac{100 \times 2}{2}= 10 \, m/s \)
