Answer:
c.The two balls will have the same speed.
Explanation:
When two balls green and blue both are moving with initial velocity 10m/s.
The green ball has been tossed upward and blue ball downwards.
Air resistance is negligible means there is no force which oppose the motion of balls.
When blue balls has been tossed downward then the blue ball will move under the gravity.
When green fall downward then the ball falls under the gravity because there is no air resistance.
Therefore, both balls move with acceleration due to gravity when they wil reach at ground.
Therefore, the velocity of both balls are same.
Hence, the two balls will have the same speed.
Option c is true.
The maximum speed is 10.4 m/s
Explanation:
For a body in uniform circular motion, the centripetal acceleration is given by:
where
v is the linear speed
r is the radius of the circular path
In this problem, we have the following data:
- The maximum centripetal acceleration must be
where 
is the acceleration of gravity. Substituting,
- The radius of the turn is
r = 10 m
Therefore, we can re-arrange the equation to solve for v, to find the maximum speed the ride can go at:
Learn more about centripetal acceleration:
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Answer:
Rows and Periods
Elements are listed in order of increasing atomic number from left to right. Each row of the periodic table is called a period and each column of the periodic table is called a group (or family).
Explanation:
A displacement equivalent to the movement of a projectile occurs. The difference is that the monkey does not have the horizontal component that the Projectile does. Due to gravity, both are subject to the change in speed caused by acceleration due to gravitational attraction.
Both objects fall at the same rate, therefore, the projectile will impact the monkey, in the same position in which the Zoologist calculated its impact.
