An object is thrown 16m/s straight up from a 7m tall cliff. How much time does it take to hit the ground below

Physics

1 answer:

harkovskaia [24]3 years ago

5 0

Answer:

0,54 sec

Explanation:

t=s/v

t=7/13 s=0,54sec

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2 years ago

Find the kenetic energy of a car of mass 700kg racing with a velocity of 10m/s

fiasKO [112]

Answer:

35000 KJ

Explanation:

The equation for the kinetic energy is given by the formula :

$E_{k} = \frac{1}{2} mv^{2}$

$E_{k} = \frac{1}{2} (700)(10)^{2}$

$E_{k} = \frac{1}{2} (700)(100)$

$E_{k} = (350)(100)$ OR $E_{k} = \frac{1}{2} (70000)$

$E_{k} = 35000$

Units will be kilojoules since the units of mass was kilograms .

Our final answer is 35000 KJ

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madreJ [45]

Answer:

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