Question
A 9.90-g bullet has a speed of 1.33 km/s.
(a) What is its kinetic energy in joules?
(b) What is the bullet's kinetic energy if its speed is halved?
(c) What is the bullet's kinetic energy if its speed is doubled?
(a) What is its kinetic energy in joules?
(b) What is the bullet's kinetic energy if its speed is halved?
(c) What is the bullet's kinetic energy if its speed is doubled?
Answers
drwls
(a)
(1/2) M V^2.
Make sure M is in kg and V is in m/s.
(b) (1/4) f what it is in (a)
(c) What do you think? What happens to V^2 if you double V?
(1/2) M V^2.
Make sure M is in kg and V is in m/s.
(b) (1/4) f what it is in (a)
(c) What do you think? What happens to V^2 if you double V?
Anonymous
why can’t y’all just answer the question :)