A crate is pushed up each of the two ramps shown in the diagram below. Based on the concept that simple machines make work easie
r, and assuming that both ramps are friction less, which statement is true?
Ramp B requires less force than ramp A.
Ramp A requires less force than ramp B.
Ramp B raises the crate higher than ramp A.
Ramp A raises the crate higher than ramp B.
Ramp B requires less force than ramp A.
Ramp A requires less force than ramp B.
Ramp B raises the crate higher than ramp A.
Ramp A raises the crate higher than ramp B.
1 answer:
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Answer:
Explanation:
This is a projectile motion problem. We will first separate the motion into x- and y-components, apply the equations of kinematics separately, then we will combine them to find the initial velocity.
The initial velocity is in the x-direction, and there is no acceleration in the x-direction.
On the other hand, there no initial velocity in the y-component, so the arrow is basically in free-fall.
Applying the equations of kinematics in the x-direction gives
For the y-direction gives
Combining both equation yields the y_component of the final velocity
Since we know the angle between the x- and y-components of the final velocity, which is 180° - 2.8° = 177.2°, we can calculate the initial velocity.
Answer:
The power will be "3.92×10⁹ Watts". A further explanation is given below.
Explanation:
The given values as per the question,
Rate,
= 8 million kg
Distance,
= 50 m
Gravity,
= 9.8 m/s²
As we know,
The power will be:
⇒
On putting the values, we get
⇒
⇒