A ball rolls from point A to point B. The total energy of the ball at point A isn’t the same as the sum of its potential energy
2 answers:
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Answer:
(a). The initial speed of the arrow is 49.96 m/s.
(b). The angle is 39.90°.
Explanation:
Given that,
Horizontal distance = 230 m
Time t = 6 sec
Vertical distance = 16 m
We need to calculate the horizontal component
Using formula of horizontal component
Put the value into the formula
.....(I)
We need to calculate the height
Using vertical component
Put the value in the equation
.....(II)
Dividing equation (II) and (I)
(a). We need to calculate the initial speed
Using equation (I)
Put the value into the formula
(b). We have already calculate the angle.
Hence, (a). The initial speed of the arrow is 49.96 m/s.
(b). The angle is 39.90°.