A 10 kg boat is moving 3 m/s. Find kinetic energy.

Physics

2 answers:

mr Goodwill [35]3 years ago

7 0

KE = 1/2mv^2
m=10 v=3
KE=1/2*10*3^2
KE= 45 Joules

REY [17]3 years ago

4 0

answer

45J

explanation

kinetic energy can be found through the equation $K = \frac{mv^2}{2}$

plug in 10 for m (mass) and 3 for v (velocity)

$K = \frac{mv^2}{2}\\K = \frac{10*3^2}{2}\\K = \frac{10*9}{2}\\K = \frac{90}{2}\\K = 45 J$

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Nata [24]

Answer:

True.

Explanation:

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6 0

3 years ago

A 75-g bullet is fired from a rifle having a barrel 0.540 m long. choose the origin to be at the location where the bullet begin

lyudmila [28]

Part a) The work done by the gas on the bullet is the integral of the force in dx, where x is the distance covered by the bullet inside the barrel with respect to the origin:
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$W=16000(0.95m)+10000 \frac{(0.95m)^2}{2} - 26000 \frac{(0.95m)^3}{3} =$
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