Plz help me solve them! I have final exam on physics tomorrow!!
1 answer:
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Here as we can see that weight on the right side of ruler given as D is applying torque about the fulcrum this is counter balanced by weight on left side given as A
now by torque balance we can say
now we will have
now here as per given setup we can see that
so here we will have
so the weight required to hold D will be more and correct answer will be
<em>The setup increases the amount of force required to lift the block and, therefore, decreases your mechanical advantage.</em>
Answer:
1.92 m/s
Explanation:
Velocity is defined as the distance moved per unit time with consideration of the direction. The direction aspect differentiates speed from velocity since for speed, we don't need to consider the direction.
Distance moved for circular path is equal to its circumference and the circumference is given by where r is the radius and substituting
for d then
Substituting 5.5 m for r and 18 s for t then
To the nearest hundredth, the velocity is 1.92 m/s
The tension in the string and the acceleration must be equal for both masses. (See the free body diagrams)
