Answer:
distance, x = 38.17 m
Given:
velocity of the football, v = 20.5 m/s
football projected at an angle,
Period of flight, T = 2.15 s
Solution:
Since, the velocity is projected at some angle, so it can be resolved in horizontal and vertical components:
vertical component,
horizontal component,
the component responsible to cover certain distance is
Therefore, the distance covered by the football, x is given by:
⇒
x = 38.17 m
Part a)
Equation of position with time is given as
since this equation is a quadratic equation
so it will be a parabolic graph between t = 0 to t = 1
part b)
at t = 0.45 s
at t = 0.55 s
now the displacement is given as
so the average velocity is given by
part c)
at t = 0.49 s
at t = 0.51 s
now the displacement is given as
so the average velocity is given by
Answer:
C. Acceleration due to gravity
Explanation:
which is 9.8 m/s2 on Earth. The formula for calculating weight is F = m × 9.8 m/s2.