Answer: 100 J
Explanation: 1/2 5 x 2^2 = 100
Hope this made any sense.
Answer:
the human body isn't very efficient at converting food into useful work. The human body is less than 5% efficient most of the time. The rest of the energy is converted to heat, which may or may not be useful, depending on how cool or warm a person wants to be.
Explanation:
8 miles per hour
because if it is moving at 4 miles every half hour that means you have to multiply it by two to get it in miles per hour and we all know that 4 times 2 is 8 so it would be 8 miles per hour =)
force=mass × acceleration
mass=force ÷ acceleration
acceleration=force ÷ mass