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A machine does 600 J of work in 5 seconds. What is its power?

Practice Questions

Q1
A machine does 600 J of work in 5 seconds. What is its power?
  1. 120 W
  2. 100 W
  3. 150 W
  4. 200 W

Questions & Step-by-Step Solutions

A machine does 600 J of work in 5 seconds. What is its power?
  • Step 1: Identify the amount of work done by the machine, which is 600 Joules (J).
  • Step 2: Identify the time taken to do the work, which is 5 seconds (s).
  • Step 3: Use the formula for power, which is Power (P) = Work / Time.
  • Step 4: Substitute the values into the formula: P = 600 J / 5 s.
  • Step 5: Calculate the result: 600 J divided by 5 s equals 120 Watts (W).
  • Power – Power is the rate at which work is done, calculated as work divided by time.
  • Work – Work is defined as the energy transferred when a force is applied over a distance.
  • Time – Time is the duration over which work is performed.
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