Answer:
1/4
Explanation:
Mechanical Advantage = Load/Effort
Given
Effort applied = 24N
Load = 6N
Substitute
MA = 6/24
MA = 1/4
Hence the mechanical advantage is 1/4
The answer is c.velocity is speed and direction
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Answer:
Maximum height, h = 1.74 meters
Explanation:
It is given that,
A potato is shot out of the cylinder. It is a case of projectile motion. The potato makes an angle of 17 degrees above the horizontal.
Initial speed with which the potato is shot out, u = 20 m/s
We have to find the maximum height of the potato. The maximum height of a projectile (h) is given by the following formula as :
![h=\dfrac{u^2sin^2\theta}{2g}](https://tex.z-dn.net/?f=h%3D%5Cdfrac%7Bu%5E2sin%5E2%5Ctheta%7D%7B2g%7D)
Where
= angle between the projectile and the surface
g = acceleration due to gravity
![h=\dfrac{(20\ m/s)^2sin^2(17)}{2\times 9.8\ m/s^2}](https://tex.z-dn.net/?f=h%3D%5Cdfrac%7B%2820%5C%20m%2Fs%29%5E2sin%5E2%2817%29%7D%7B2%5Ctimes%209.8%5C%20m%2Fs%5E2%7D)
h = 1.74 m
or h = 1.74 meters
Hence, this is the required solution.
That you have thrown a ball with kinetic energy upwards at an increasing velocity rate