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Kisachek [45]
3 years ago
12

Jumps at 8 m/s at a 30 degree angle above the horizontal. how long was she in the air?

Physics
1 answer:
pentagon [3]3 years ago
4 0
Vo = 8 m/s. g = 10 m/s^2
alpha = 30 degree
ask: x?

x = vo^2 sin ^2 alpha / g
x = 8 ^2 x 2 sin 30 cos 30 / 10
x =( 64 x2x 1/2x1/2√3 )/ 10
x= 3.2 √3 metres

√3 = 1.73
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An automobile starter motor has an equivalent resistance of 0.0510 Ω and is supplied by a 12.0 V battery with a 0.0090 Ω interna
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d)

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Explanation:

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To calculate the voltage dropped by the motor we have to apply the voltage divider rule:

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The power dissipated supplied to the motor is given by:

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now solving adding a 0.0900 ohm resistor:

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