Answer:
The Andrews is A. 90km
Explanation: so far 1cm is equal to 45km on the map. That Means that a unit distance on the map is actually 4, 500, 000units (i.e 45 x 1000 x 100) in real life.
So if 1 cm represents 45km
2cm will represent 2 x 45km which gives 90km.
d = distance = 0.76 m <span>
<span>a = acceleration due to gravity = 9.81 m/s^2</span>
u = initial velocity = 0 (as the ball rolls off the table the
vertical velocity = 0
t = time = missing so we need to solve it
So we use the equation d = ut + 1/2 at², and ever since u is
zero, ut is zero and the equation becomes to d = 1/2 at² and this reorders to t
= sqrt (2d/a) = 0.39 seconds.
Since there are no forces performing in the horizontal
direction, this means that there is no acceleration in the horizontal direction
and consequently the horizontal velocity is persistent. </span>
Velocity = distance/
time.
Horizontal velocity is
therefore horizontal distance/time = 0.61 m/0.39s = 1.56 m/s.
<span> </span>
12 is false I think And I'm not sure about the rest
That is false. A GPS cant tell latitude and longitude