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Daniel [21]
3 years ago
6

A baseball is dropped off the side of a cliff. It free-falls to the ground in 8 seconds. During the third second, the ball is tr

aveling about ___ m/s.
Physics
2 answers:
Anna [14]3 years ago
6 0

when an object drops it accelerates at 9.8 mps so at 3 seconds the equation would be 9.8x3 which equals 29.4

kozerog [31]3 years ago
3 0
The acceleration of gravity is 9.8 m/s² .  That means that a falling object
is always falling 9.8 m/s faster than it was falling 1 second earlier.

If an object is not slowed by air resistance, and has far enough to go
so that it's still falling after three whole seconds, then at the end of
three seconds it's falling at

           (9.8 m/s²) x (3 sec)  =  29.4 m/s
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Answer:

Part 1)

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Part 3)

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Part 4)

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Explanation:

As we know that the block A is placed at distance

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So torque due to weight of A is given as

\tau_1 = 5 \times (0.50) = 2.5 N m

the block B is placed at distance

d = 30 cm from the hinge at 70 cm mark

So torque due to weight of B is given as

\tau_2 = 14 \times (0.30) = 4.2 N m

Now torque due to weight of the scale is given as

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\tau_3 = 1.4 N m

now torque on left side of scale is given as

\tau_{left} = \tau_1 + \tau_3

\tau_{left} = 2.5 + 1.4 = 3.9 N m

Torque on right Side is given as

\tau_{right} = \tau_2 = 4.2 Nm

Since torque on right side is more so here it will turn and slip over it

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Answer:

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