Answer:
5m/s/s
Explanation:
10N bc you subtract 10N from 20N and you get 10
a=f/m
F=10N
m=2kg
10/2=5
When gases, fluids, or other solids are in contact with a moving object
heat is produced due to friction.
Answer: Sam provides the biggest power
Explanation: <u>Power</u> is defined, in Physics, as the rate of work done. <u>Work</u> is energy transferred to an object due to the force causing the displacement of the object.
So, to determine Power:
For Sam:
P = ![\frac{work}{time}](https://tex.z-dn.net/?f=%5Cfrac%7Bwork%7D%7Btime%7D)
![P=\frac{F.d}{t}](https://tex.z-dn.net/?f=P%3D%5Cfrac%7BF.d%7D%7Bt%7D)
![P=\frac{300.5}{30}](https://tex.z-dn.net/?f=P%3D%5Cfrac%7B300.5%7D%7B30%7D)
P = 50 Watts
The unit for Power is [P] = J/s = Watt
For Gary:
P = ![\frac{work}{time}](https://tex.z-dn.net/?f=%5Cfrac%7Bwork%7D%7Btime%7D)
![P=\frac{1000}{25}](https://tex.z-dn.net/?f=P%3D%5Cfrac%7B1000%7D%7B25%7D)
P = 40 Watts
Comparing power of Sam and Gary, we can conclude that Sam provides the biggest power of 50 Watts.