Answer:
Acceleration equals the change in velocity divided by time.
Explanation:
The acceleration of an object is given by :
Where
v is the final speed
u is the initial speed
t is the time taken
It is a vector quantity. Its SI unit is
(v-u) is called the change in speed of the object. So, the correct statement is ''Acceleration equals the change in velocity divided by time''.
Explanation:
The tangential speed of Andrea is given by :
Where
r is radius of the circular path
ω is angular speed
The merry-go-round is rotating at a constant angular speed. Let the new distance from the center of the circular platform is r'
r' = 2r
New angular speed,
New angular speed is twice that of the Chuck's speed.
Answer:
C.) 1.5 kg
Explanation:
Start with the equation:
Plug in what you know, and solve:
Find matching soluation:
C.) 1.5 kg