Answer:
Acceleration is the variation of Velocity in time :
(1)
This can be written as:
(2)
Where:
is the final velocity
is the initial velocity
is the final time
is the initial time
<u>Finally:</u>
The negative sign means the car is desaccelerating
The image produced by the lens would be where the two lines cross, which would be Z.
Answer:
last option is the correct one
Answer:
Explanation:
We shall represent each move of coach in vector form , considering unit vector i towards east and unit vector j towards north .
he drove 100 m North
First displacement D₁ = 100 j
200 m East to reach the 133
second displacement D₂ = 200 i
500 m North to reach Papa John's
third displacement
D₃ = 500 j
Total displacement ( resultant displacement )
= D₁ + D₂ + D₃
= 100 j + 200 i + 500 j
= 200 i + 600 j
magnitude of resultant displacement
= √ ( 200² + 600² )
= √ 40000 + 360000
= 632.45 m