The expression for the block's centripetal acceleration is derived as ω²r or v²/r.
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What is centripetal acceleration?</h3>
The centripetal acceleration of an object is the inward or radial acceleration of an object moving in a circular path.
The expression for the block's centripetal acceleration is derived as follows;
ω = dθ/dt
where;
- ω is the angular speed
- θ is the angular displacement
- t is the time of motion
ac = ω²r
where;
- r is the radius of the circular path
Also, ω = v/r
ac = (v/r)²r
ac = v²/r
Thus, the expression for the block's centripetal acceleration is derived as ω²r or v²/r.
Learn more about centripetal acceleration here: brainly.com/question/79801
Answer:
Chemical energy is converted to thermal energy and electrical energy.
Explanation:
There are 1,000m in a km, so 200km is 200,000m
200,000m/10m/s = 20,000s
