A ball is thrown straight upward with an initial velocity of 18.5m/s at the edge of a cliff that is 25.0m below the initial poin
1 answer:
The velocity of the ball at its maximum height is zero (0).
The given parameters;
- <em>initial vertical velocity of the ball, </em>
<em> = 18.5 m/s</em>
- <em>height of the cliff, h = 25</em>
<em />
In a projectile motion, as the object ascends upwards, its vertical velocity decreases and eventually becomes zero as the object reaches maximum height.
This <em>velocity</em> starts to increase again as the object descends downwards and finally becomes maximum before the object hits the ground.
Thus, we can conclude that the velocity of the ball at its maximum height is zero (0).
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Answer:
Output voltage is 1.507 mV
Solution:
As per the question:
Nominal resistance, R =
Fixed resistance, R =
Gauge Factor, G.F = 2.01
Supply Voltage,
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Now,
To calculate the output voltage, :
WE know that strain is given by:
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Now, substituting the suitable values in the above eqn:
Answer:
The magnitude of the resultant vector R is 50 meters ⇒ 2nd answer
Explanation:
<u><em>The resultant vector</em></u> is the vector sum of two or more vectors
If the two vectors perpendicular to each other, then the magnitude of
the resultant vector is the square root of the sum of their squares
If x and y are two vectors perpendicular to each other, then the
magnitude of its resultant vector R is:
→
Lets solve the problem
A right triangle with the base labeled 40 meters and the height labeled
30 meters
The hypotenuse is a dotted arrow labeled R
→ The base and the height of the right triangle are perpendicular
→ The hypotenuse is the resultant vector of them
Assume that x represents the base of the triangle and y represents the
height of it
By using the rule above
→ x = 40 m , y = 30 m
→
→
→
→
<em>The magnitude of the resultant vector R is 50 meters</em>