Answer: 4 s
Explanation:
Given
The ball leaves the hand of student with a speed of
When the hand is above the ground
Using the equation of motion we can write
Substitute the values
Thus, the ball will take 4 s to hit the ground.
Suppose a person whose mass is m is being held up against the wall with a constant tangential velocity v greater than the minimu
1 answer:
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Answer:
Ae/A* = 1.115
Explanation:
Let the reservoir pressure be
Let the exit pressure be
Ratio of reservoir pressure and exit pressure
= 3.182
For the above value of pressure ratio
Obtain the area ratio from the isentropic flow table
Ae/A* = 1.115
The value of pressure ratio is Ae/A* = 1.115