Answer : The correct option is, (d) 1080 J
Explanation :
Total energy = Kinetic energy + Potential energy
[tex]\text{Total energy}=\frac{1}{2}mv^2+mgh[/tex]
where,
m = mass of an object = 2.0 kg
v = speed of an object = 10 m/s
h = height of an object = 50 m
g = acceleration due to gravity = [tex]9.8m/s^2[/tex]
Now put all the given values in the above expression, we get:
[tex]\text{Total energy}=\frac{1}{2}\times (2.0kg)\times (10m/s)^2+(2.0kg)\times (9.8m/s^2)\times (50m)[/tex]
Total energy = 1080 J
Thus, the total energy will be, 1080 J
