The ball has a mass of 2 kg and the velocity of 8 m/s. What
is the KINETIC ENERGY of the ball?
A. 63 B. 163 C. 64N
D. 643
Answer:
the answer is 64
Step-by-step explanation:
G: m=2kg v=8m/s
R: KE?
S: KE mv²
KE: 2kg × (8m/s)²
KE: 2kg × 64 m²/s²
KE: 128 kg m²/s² ÷ 2
KE= 64J
Answer:
64J
Step-by-step explanation:
Formula:
[tex] \\ \sf{}K.E. = \frac{1}{2} {mv}^{2} [/tex]
K.E. = Kinetic Energy = ?
M = mass = 2kg
V = velocity = 8m/s²
[tex]\\ \sf{}K.E. = \frac{1}{2} (2kg)(m/s ) {}^{2} [/tex]
[tex]\\ \sf{}K.E. = \frac{1}{2} (2kg)(64m/s^{2})[/tex]
[tex]\\ \sf{}K.E. = \frac{1}{2} \bigg(128kg.m/s^{2} \bigg )[/tex]
[tex]\\ \sf{}K.E. = \frac{128kg.m/s^{2}}{2} [/tex]
[tex]\\ \huge \boxed{\sf{}K.E. =64J} \\ \\ \\ [/tex]
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