The answer is Z: Gamma rays X: Visible light. Gamma ray is the shortest and has the greatest frequency and power. That is why it is in letter Z.
Answer:
Given:
Initial velocity (u) of the object = 0 m/s (Body starts from rest)
Height above the ground (h) = 36 m
Accelration due to gravity (g) = 10 m/s²
To Find:
Time taken (t) by the object to hit the ground
Explanation:
From equation of motion for object under gravity we have:
Substituting values of h, u & g in the equation we get:
Initial speed of Gazelle is along x direction and its value will be
also its initial height is given as
Part a)
now from kinematics along Y direction
as we know that
Part b)
distance moved horizontally
as we know that
now we will have
so it will lend at distance of 4 m.
Part c)
final velocity in vertical direction
so net speed will be