Answer:
1 hour
Explanation:
Since the definition of velocity is 
, we can calculate the position at time t of an object moving at speed v with 
.
The position of the first ferry is 
The position of the second ferry is 
We want to know when they will be 6 miles apart. This means, if we call that distance d, that we want to know when the difference between their positions will be d, or 
(we know that at the beginning the position of the ferry 1 is of higher value than that of ferry 2 since it left before).
We use our previous formulas then:
Since we want the time, we do:
And substitute our values:
Answer:
D. (static equilibrium)
Explanation:
I just took the test and made a 100 with that answer.
It has 50kg with a velocity of 1 m/s times the speed of the cart divided by 2 and multiplied by kinectic x plus 5
Answer:
• riding on a Ferris wheel whose entrance and exit are the same
• walking around the block, starting from and ending at the same house
• running exactly one lap around a racetrack
Explanation:
Displacement simply means the.change in position of an object. In a situation whereby the initial and final position are thesame, the displacement will be zero.
The statements that describe a situation with a displacement of zero include:
• riding on a Ferris wheel whose entrance and exit are the same
• walking around the block, starting from and ending at the same house
• running exactly one lap around a racetrack
Answer:
<h3>0.77m/s</h3>
Explanation:
According to law of conservation of energy
m1u1 + m2 u2 = (m1+m2)v
m1 and m2 are the masses of the bodies
u1 and u2 are the initial velocities
v is the final velocity after collision
Substitute the given values into the formula
1055(0) + 660(2) = (1055+660)v
0+1320 = 1715v
v = 1320/1715
v = 0.77m/s
Hence the final velocity of each vehicle is 0.77m/s
