Question

Find the energy of a 50kg object that is moving at 4m/s

Answer 1

• 400J

Given :

• Mass = 50kg
• Velocity = 4m/s

To find :

• Energy

Solution :

We know that,

• 
  `E = (1)/(2) mv {}^(2) \\`

Plugging in the values,

• 
  `E = (1)/(2) * 50kg * (4m/s) {}^(2) \\`
• 
  `E = 25kg * 16m {}^(2) /s {}^(2)`
• 
  `E = 400J`

Thus, the energy of an object of 50kg moving at 4m/s would be equal to 400J.