Earth's gravitational potential energy: GPE = mgh = Gravity (9.81m/s2)x Mass (kg) x Height (m)
Kinetic energy: KE=
- 12 mu?
How would you calculate the kinetic energy of a 0.148 kg (5.22 oz) baseball
traveling at 40 m/s (90 mph)?
A. (0.148)(40)9.8
B. (0.148)(40)
2
C.
(0.148)(40)
98
D.
(0.148)(40).
2.

Option B. (0.148 × 40²) /2

Explanation:

The following data were obtained from the question:

Mass (m) = 0.148kg

Velocity (v) = 40m/s

Kinetic energy (K.E) =?

The kinetic energy of the base ball can be obtained by using ½mv² as follow:

K.E = ½mv²

K.E = ½ × 0.148 × 40²

K.E = (0.148 × 40²) /2

Explanation:

B

Explanation: