Pail of watersuppose you wish to whirl a pail full of water in a vertical circle at a constant speed without spilling any of its contents (even at the top of the if your arm is 0.70 m long (from shoulder to fist) and the distance from the handle to the surface of the water is 15.0 cm, what minimum speed is required?

Velocity will be 2.886 m/sec  

Explanation:

We have given arm length = 0.70 m

And distance from the handle to surface = 15 cm =0.15 m

So total distance r = 0.70+0.15 = 0.85

We know that acceleration is given by

Here acceleration is acceleration due to gravity so a=g

So

So velocity will be 2.886 m/sec

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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