If a turtle is hit by a boat and damage is done to its shell, is the injury able to heal? Identify the correct answer to this qu
2 answers:
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Answer:
19.8 m/s
Explanation:
Given:
Maximum vertical displacement of the object (H) = 20 m
Acceleration due to gravity (g) = 9.8 m/s²
At maximum height, the velocity of the object is 0 m/s for a moment. So, final velocity (v) at the maximum height is 0 m/s.
Now, let the initial velocity or velocity at launch be 'u' m/s.
Now, using the following equation of motion for vertical motion:
Rewriting in terms of 'u', we get:
Plug in the given values and solve for 'u'. This gives,
Therefore, the vertical velocity at the launch is 19.8 m/s.
We will have the following:
So, the force is approximately 1.85*10^-6 N.
Answer:
(a) Time will be t = 3.56 sec
(b) Distance traveled by car when they are side by side is 37.38712 m
(b) Velocity of race car = 21.004 m/sec
velocity of stock car = 12.816 m/sec
Explanation:
We have given acceleration of the car
Acceleration of the stock car
When 1st car overtakes the second car then distance traveled by both the car will be same
(a) So
As both car starts from rest so initial velocity of both car will be 0 m/sec
It is given that stock car leaves 1 sec before
So
After solving t = 3.56 sec
(b) From second equation of motion
(c) From first equation pf motion v = u+at
So velocity of race car v = 0+5.9×3.56 = 21.004 m/sec
Velocity of stock car v = 0+ 3.6×3.56 = 12.816 m/sec