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How do forces help a ball speed up?
Forces help speed up a ball by providing it with acceleration, which is the rate of change of velocity. When a force is applied to a ball, it overcomes any resistance, such as friction, allowing the ball to move faster. The force increases the ball's momentum, resulting in an increase in speed.
What would an observer on the ground obtain for speed of a ball on a train?
Just add or subtract (depending on the direction) the speed of the ball (in relation to the train) to the speed of the train (in relation to the ground). The above assumes the speeds are not close to the speed of light; if they are, more complicated formulae are required.
What is the name of the device detect the speed of an aeroplane?
The device used to detect the speed of an airplane is called an airspeed indicator. It measures the speed at which the airplane is moving through the air, typically displayed in knots.
What is the speed of a ball at 40 ms 6 seconds later?
To find the speed of the ball at a specific time after an initial speed of 40 m/s, you need more information such as the acceleration of the ball. Without this information, it is not possible to accurately determine the speed of the ball at a specific time after the initial speed of 40 m/s.
How will the speed of a ball thrown upward and a ball thrown downward compare upon striking the ground?
The speed of a ball thrown upward upon striking the ground will be the same as the speed at which it was thrown, but in the opposite direction. The speed of a ball thrown downward upon striking the ground will be faster than the speed at which it was thrown due to the acceleration from gravity.
