What is the efficiency of a ramp if 2,000 joules of energy results in 1,200 joules of work?
A.) 80%
B.) 32%
C.) 60%
D.) 24%
C.) 60%
To determine the efficiency of the ramp, we need to use the formula:
efficiency = (useful output energy / input energy) * 100%
In this case, the useful output energy is the work done, which is given as 1,200 joules. The input energy is the total energy, which is given as 2,000 joules.
Therefore, we can calculate the efficiency as follows:
efficiency = (1,200 / 2,000) * 100%
= 0.6 * 100%
= 60%
So, the efficiency of the ramp is 60%.
The correct answer is C.) 60%.
To calculate the efficiency of a ramp, we use the formula:
Efficiency = (useful output energy / input energy) * 100%
Given that 2,000 joules of energy results in 1,200 joules of work:
Efficiency = (1,200 / 2,000) * 100%
Efficiency = 0.6 * 100%
Efficiency = 60%
Therefore, the efficiency of the ramp is 60%.
Answer: C) 60%