A0.160 kg ball attached to a light cord is swung in a vertical circle of radius 70.0 cm. at the top of the swing, the speed of the ball is 3.26 m/s. the centre of the circle is 1.50 m above the floor.
calculate the speed of the ball when the cord is 30.0̊ below the horizontal.

The speed of the ball is 5.59 m/s.

Explanation:

Given that,

Mass = 0.160 kg

Radius = 70 cm =0.70 m

Distance = 1.50

Speed at top = 3.26 m/s

Angle = 30.0°

We need to calculate the speed of the ball

The total energy at the top

The final kinetic energy of ball at that point when the cord is 30° below the horizontal

Using conservation of energy

Hence, The speed of the ball is 5.59 m/s.

the expression 15n + 2(3p) represents the amount isaiah spent buying gasoline and snacks, where n represents the price of each gallon of gasoline and p represents the cost of each snack that he bought. which statement is true about the amount isaiah spent?

heat the gas and measure the pressure