A projectile is launched at an angel into the air its verticle acceleration is g?
1 answer:
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The apparent velocity is B) 48 m/s north
Explanation:
Here we have a problem of relativity of velocities.
In fact, the train is travelling north at a speed of
where this velocity is measured with respect to the ground.
At the same time, a passenger on the train is walking towards the rear (so, south) at a velocity of
where this velocity is measured with respect to the train, which is in motion in the opposite direction.
Therefore, the apparent velocity of the passenger with respect to an observer standing on the ground is:
And the direction is north, since this number is positive.
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Answer:
The value is
Explanation:
From the question we are told that
The speed of the rope with hook is
The angle is
The speed at which it hits top of the wall is
Generally from kinematic equation we have that
Here h is the height of the wall so
=>