Answer:
Step-by-step explanation:
Kinetic energy = 1/2 ×m × v^2
Kinetic energy = 225J
Velocity v = 15m/s
225 = 1/2 × m × 15^2
225×2 = 225 × m
450 = 225m
m = 450/225
m = 2kg
Mass is 2kg
Answer: 2 kg.
Explanation: Kinetic Energy is expressed as the product of mass and squared of velocity over two KE=1/2 mv² . Derive the following expression for mass. m=2KE/v² then substitute the values 2(225J)/ (15 m/s)² =2kg
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