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mars1129 [50]
3 years ago
13

If an object is thrown straight up from the ground what velocity does it need to be thrown in order to reach a height of 50 ft?

Mathematics
2 answers:
Pavlova-9 [17]3 years ago
8 0

Answer:

Object is thrown with a velocity of 56.74 m/sec

Step-by-step explanation:

We have given height h = 50 feet

When the object reach at its maximum height its final velocity will be o

So final velocity v = 0 m/sec

Acceleration due to gravity g=-32.2feet/sec^2 ( Negative sign is due to upward direction )

From third equation of motion

v^2=u^2+2gh

0^2=u^2-2\times 32.2\times 50

u^2=3220

u=56.74m/sec

So object is thrown with a velocity of 56.74 m/sec

ra1l [238]3 years ago
5 0

Answer:

40 ft/sec

Step-by-step explanation:

height h = 50 ft

final velocity v would be zero.

acceleration a = -32 ft/sec^2

we kn that

u^2=v^2+2ah

u^2= 0^2- 32×50

u= √(32×50)

u= 40 ft/sec

the object must be thrown with the velocity of 40 ft/sec

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