Register
If a rolling ball had 18 joules of KE and is rolling 3 m/s, what is the mass?
106k views
5 votes
If a rolling ball had 18 joules of KE and is rolling 3 m/s, what is the mass?

User Amit Bhati
by
3.4k points

2 Answers

3 votes

Answer:

F=MA FORSE= MASS X ACCELERATION

Step-by-step explanation:

So the answer should be 54 as 18 X 3 = 54

( I read the question wrong)

User CallumDA
by
3.3k points
6 votes

Answer:

4Kg

Step-by-step explanation:

1/2mv²=K.E

1/2m×3²=18J

1/2m×9=18

9m=18×2

9m=36

m=36/9

m=4Kg

User LivaX
by
3.9k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

3.4m questions

4.4m answers

Other Questions

How does the value of the electrostatic force vary with the value (how many) of the charges?
A car is moving 14.4 m/s when it hits the brakes. It slow from 78.8 m, which take 9.92s. It then accelerates at 1.83 m/s 2 for 4.50 s. What is the total displacement?
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?
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
Link Copied!