Answer: 5 meters.
Step-by-step explanation:
When a circle circumscribed about a rectangle,
Then the diameter of the circle = Diagonal of the rectangle,
Here, the length of the rectangle = 8 cm,
And, the width of the rectangle = 6 cm,
Thus, the diameter of the circle = 10 meters
⇒ Radius of the circle = diameter/2 = 10/2 = 5 meters.
Explanation:
Mass of boy = 40 kg
Mass of box = 20 kg
Total mass = 60 kg
Initial potential energy = 0 (since height would be 0 initially)
Final potential energy = mgh
Taking g as 10 m/s²,
=> 60 × 10 × 15
= 9,000 J
So, work done = final potential energy - initial potential energy
Power = Work/Time
=> Power = 9000/25
=> Power = 360 J/s
or 360 watt.
Answer:
Now, by inscribed angle theorem: