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MA_775_DIABLO [31]
3 years ago
14

A ball rolls with a speed of 3 m/s across a level table that is 1.5m above the floor. How far along the floor is the landing spo

t from the table?
Physics
1 answer:
san4es73 [151]3 years ago
3 0

Answer:

d = 1.65 m

Explanation:

Given that,

The speed of a ball, v = 3 m/s

A ball rolls a level table that is 1.5 m above the floor.

We can find how long the ball is in free fall. We can use the second equation of kinematics as follows :

s=ut+\dfrac{1}{2}gt^2

u is the initial speed in the vertical direction

So,

s=\dfrac{1}{2}gt^2\\\\t=\sqrt{\dfrac{2s}{g}} \\\\t=\sqrt{\dfrac{2\times 1.5}{9.8}} \\\\t=0.55\ s

Now, using the formula of velocity.

v=\dfrac{d}{t}\\\\d=vt\\\\d=3\times 0.55\\\\d=1.65\ m

So, the landing spot is at 1.65 m from the table.

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