First, we need to calculate the kinetic energy (Ek) using the formula:
Ek = 1/2 m v^2
where:m = mass (800g = 0.8kg)v = velocity (40 m/s)
Plugging in the values:
Ek = 1/2 0.8 40^2Ek = 1/2 0.8 1600Ek = 0.4 * 1600Ek = 640 J
Therefore, the kinetic energy of the object is 640 Joules.
First, we need to calculate the kinetic energy (Ek) using the formula:
Ek = 1/2 m v^2
where:
m = mass (800g = 0.8kg)
v = velocity (40 m/s)
Plugging in the values:
Ek = 1/2 0.8 40^2
Ek = 1/2 0.8 1600
Ek = 0.4 * 1600
Ek = 640 J
Therefore, the kinetic energy of the object is 640 Joules.