That you won't slip while walking because you will have more balance and support
Answer:
C) scientist use experiments to test their ideas
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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Answer:
50 kg
Explanation:
f=ma
Force = mass x acceleration
490 = 9.8 x m
m = 50 kg
To develop this problem we will apply the concepts related to energy conservation, in this way the change in kinetic energy must be equivalent to the change in potential energy. Finally we will obtain a speed dependent expression to find the maximum height that can be reached for the two given angles, given that the first cannon ball is fired with a speed of 1050m/s at angle of 35°.
Therefore the vertical velocity will be,
Use the law of conservation of energy to find the height
Replacing with our values,
Therefore the maximum height reached by the first ball is
The second cannon ball is fired at an angle of 90°. Hence, the maximum height reached by the second ball is,