Answer:
v = 70 m/s
Explanation:
Range on the cannon ball is given as

here the angle of the projection of the ball is given as 45 degree
now we know that if the velocity of the ball is "v" then its two components will be given as


so here time of flight of the motion is given as


also the range is given as


now plug in all data in this equation


I believe it's technically referred to as the Normal force.
However I like to think of it as the reaction force, as it is the force that is a result of obeying Newton's 3rd law ("<span>For every action, there is an equal and opposite reaction"). The upward force from the ground is the reaction to the downward force of gravity.</span>
The dependent variable was the time and the independent variable was thecars
Basing on the information given, we can calculate the new weight of the object by the following given:current weight = 20 Ng = 10m/s2
20N/4 = 5N
Thank you for your question. Please don't hesitate to ask in Brainly your queries.
Since the y axis stayed consistent, we can assume it did not move at all.
(So your answer would be A)