A bullet of mass 100g has attained a velocity of 1080kmh−1 towards the target. What would its kinetic energy be at that moment?
A
4500J
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
4240J
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
4300J
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
4750J
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A4500J Given, mass of the body, m=100g=0.1kg and velocity of the body, v=1080kmh−1=1080×100060×60 =300ms−1
Kinetic energy, K.E.=12mv2
Substituting the values in the expression of K.E, we get: