Select your language

Suggested languages for you:
Log In Start studying!
Answers without the blur. Sign up and see all textbooks for free! Illustration

Q. 1

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 227

Answers without the blur.

Just sign up for free and you're in.


Short Answer

Which has the larger kinetic energy, a 10 g bullet fired at
500 m/s or a 75 kg student running at 5.5 m/s?

Bullet has larger kinetic energy compared to student.

See the step by step solution

Step by Step Solution

Step1: Given information

Mass of bullet = 10 g bullet and velocity 500 m/s

Mass of student = 75 kg and velocity= 5.5 m/s?

2Step2: Explanation

Calculate the kinetic energy using

KE = 1/2(mv2)

Now find the kinetic energy of bullet and students using the equation (1)

KEBullet =1/2(0.010kg)(500m/s)2 = 1250 J


KEstudent = 1/2(75kg)(5.5m/s)2 = 1134.38 J

We can see KEbullet > KEstudent

Recommended explanations on Physics Textbooks

94% of StudySmarter users get better grades.

Sign up for free
94% of StudySmarter users get better grades.