Answer:
Step-by-step explanation:
A I think sorry if I’m wrong
9514 1404 393
Answer:
6 m/s
Step-by-step explanation:
The formula for kinetic energy is ...
KE = (1/2)mv² . . . . m is mass
Filling in the given values, we can solve for v.
1440 J = (1/2)(70+10 kg)v^2
(1440 J)/(40 kg) = v^2 = 36 m²/s² . . . . m is meters
v = √(36) m/s = 6 m/s
The man is moving at 6 meters per second.
_____
In terms of units analysis, the joule (J) is a derived unit equal to ...
1 J = 1 kg·m²/s²
Answer: The highest labor cost per hour that he can afford is $34
Step-by-step explanation:
Hi, to answer this question we simply have to solve the inequality:
4x + 260 < 400
4x < 400-260
4x < 140
x < 140/4
x < 35
Since x represents the labor cost per hour , The highest labor cost per hour that he can afford is $34 (using whole numbers, because x must be less than 35, not less or equal)
Feel free to ask for more if needed or if you did not understand something.