At the top most position when ball reach to height 31 m
The speed of the ball must be ZERO
now we can use kinematics to find the final speed of the ball when it will hit back the ground
the equation of kinematics will be
so it will hit the ground at speed 24.65 m/s
Explanation:
Echo method formula for speed of sound : 2 x distance / time taken
2 x distance / 58 = 1540 m/s
2 x distance = 1540 m/s / 58 s
= 26.55172414 m
Distance = 26.55172414 / 2
= 13.27586207
= 13 m
What kinds of bonds can happen between the elements of a compound?
<span>Covalent and Ionic</span>
Answer:
of the velocity of a full size plane in the air
Answer:
Explanation:
The formula S=(at^2)/2 will be used during the entire explanation.
1. 4 = (2t^2)/2
t = 2 s.
V = at = 2 * 2 = 4 m/s
2. 8 = (2t^2)/2
t = 2.8 s
iii. 2s
iv. 2.8 - 2 = 0.8s
Hope you understand)
