Answer:
it can change its speed direction or both
Answer:
a. tension of the cable attached to chair = 2.77kN
b. speed of the chair = 10.38m/s
Explanation:
A. tension of the cable is calculated by mass of the chair multiply by gravitational acceleration.
Tension(T) = m*g
where, m= 283kg
length of cable = 11m
and g=9.8m/s2
tension = mg = 283*9.8
=2773.4 N = 2.77kN
b. speed of the chair =
= 10.38m/s
Given that,
The radius of a flywheel, r = 20 cm = 0.2 m
The centripetal acceleration experienced on the edge of the flywheel = 900 cm/s² = 9 m/s²
To find,
The speed of a point on the edge.
Solution,
The formula for the centripetal acceleration is given by :
Hence, the required speed is 1.34 m/s
Answer:
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<h2>PE=
<em>work done</em></h2><h2>
<em>m</em><em>gh</em><em>=</em><em>2</em><em>0</em><em>×</em><em>1</em><em>0</em><em>×</em><em>2</em><em>0</em><em>.</em><em>.</em></h2>
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<em>I </em><em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em><em>you</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>