Register
What has more KE a 2 kg mass at 10 m/s or a 20 kg mass at 3 m/s?
232k views
11 votes
What has more KE a 2 kg mass at 10 m/s or a 20 kg mass at 3 m/s?

User Zannix
by
3.4k points

1 Answer

8 votes
KE = 1/2mv^2
for 2 kg mass:
KE = 1/2*2*10^2
= 100 J
for 3kg mass:
KE = 1/2*3*20^2
= 600 J
3kg object has more KE
User Matcygan
by
3.2k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

3.3m questions

4.3m answers

Other Questions

A charge Q is uniformly spread over one surface of a very large nonconducting square elastic sheet having sides of length d. At a point P that is 1.25 cm outside the sheet, the magnitude of the electric
If you use 750 Newtons of force to accelerate an object to 3.1 m/s​ . What is the object’s mass?
ou are unloading a refrigerator from a delivery van. The ramp on the van is 5.0 m long, and its top end is 1.4 m above the ground. As the refrigerator moves down the ramp, you are on the down side of the
A 0.260 kg potato is tied to a string with length 2.50 m, and the other end of the string is tied to a rigid support. The potato is held straight out horizontally from the point of support, with the string
What atom accounts for 91% of all the sun's atoms
Link Copied!