Answer:
I'm not sure if I know whatever the answer is
All of the above, work is a measurement of energy transfer, in Joules.
Potential energy = Joules
Kinetic energy = Joules
The key thing here is that anything having to do with just energy or energy transfer is measured in joules.
Answer:
t = 0.67 [s]
Explanation:
To solve this problem we must use the following kinematics equation.
![v_{f} =v_{i} +(a*t)\\where:](https://tex.z-dn.net/?f=v_%7Bf%7D%20%3Dv_%7Bi%7D%20%2B%28a%2At%29%5C%5Cwhere%3A)
Vf = final velocity = 20[m/s]
Vi = initial velocity = 10 [m/s]
a = aceleration = 15 [m/s^2]
Now replacing in the equation we have:
20 = 10 + (15*t)
t = (20-10)/15
t = 0.67 [s]