The maximum range of the golf ball is 18.6 m.
The given parameters;
height reached by the ball, h = 3 m
distance of the ball, x = 14
the initial velocity of the ball, u = 13.5 m/s
The maximum range of the ball is calculated as follows;
at maximum range, the angle of projection,
Thus, the maximum range of the golf ball is 18.6 m.
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The angle of bank needed, measured from the vertical is 86.6⁰.
<h3>
Banking angle of the circular path</h3>
The angle of bank needed, measured from the vertical is calculated as follows;
v = √(rg tanθ)
where;
- v is the speed = 1440 km/h = 400 m/s
- r is radius of the curve = 960 m
- g is acceleration due to gravity
- θ is the banking angle
400² = (960 x 9.8 x tanθ)
tanθ = 400²(960 x 9.8)
tanθ = 17
θ = arc tan(17)
θ = 86.6⁰
Thus, the angle of bank needed, measured from the vertical is 86.6⁰.
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Answer: 68.4 s
Explanation:
The plot points seem to indicate a 5 m/s increase in velocity in the 6 seconds between 2 and 8 second marks. This makes the acceleration
a = 5 / 6 m/s/s
At time zero, the velocity is 13 m/s, so we need to increase by
70 - 13 = 57 m/s
t = v/a = 57 / (5/6) = 68.4 s
Answer:
F. The length of day would be longer
Explanation:
- Earths rotates on its axis from the eastward to the westward direction, earth takes about 24 hours to complete its rotation. If the rate of earth's rotation on its axis slows down then the days will be longer than usual.
- Thought the length of year would remain the same. Earth rotation is also impacted by the sun and moon's gravitational pull. The disappearance of the centrifugal force form the surface would cause climate changes and seasonal extremes.
Answer:
153 N
Explanation:
The work done on the ball by the pitcher = Force * distance
The energy of the baseball is kinetic because it moves.
is the mass and is the velocity.
By the work-kinetic energic theorem,
Hence