Answer:
The speed of the ball is 9.23m/s
Explanation:
Using kinematic equation for the vertical height is given by:
h = Ut + 1/2 gt^2
Where h = 36m as given from the question
g = acceleration due to gravity= 9.81
Initial velocity, U =0
t = time
Substituting into the equation
36 = 0 + 1/2 ×9.81 × t^2
36 = 4.905t^2
36/4.905 = t^2
7.34 = t^2
Sqrt(7.34) = t
2.71 seconds = t
Speed = distance / time
Speed = 25m/ 2.71s
Speed = 9.23m/s
Answer:
Mass of receiver is 92 kg
Explanation:
We have given mass of tackler
Let the mass of receiver is
When tackler moving alone velocity is m/sec
And when tackler and receiver is together velocity is = 2.5 m/sec
So from conservation of momentum
So mass of receiver is 92 kg
False. the ribosomes job is to manufacture protien via linking amino acids in order specified by cell messenger.