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:
1/6
Step-by-step explanation:
Answer: $7
Step-by-step explanation: So $27 -$6= $21.Then you Divide by 3 and you will get $7 for each beaker.
Answer:
15 times as long
Step-by-step explanation:
6 meters/0.4 meters is 15, so it is 15 times as long.