A shark is swimming at 10 m/s west when it spots some floating bait caught in some seaweed straight ahead. After 10 s, and trave
2 answers:
Answer:
C. 0.5 m/s² west
Explanation:
The shark average acceleration is given by the following equation:
where:
u = 10 m/s west is the initial velocity of the shark
v = 15 m/s west is the final velocity
t = 10 s is the time taken
Plugging numbers into the formula, we find
and the direction is west, because the shark speeds up in the same direction of the initial velocity, so the acceleration is positive and therefore in the same direction.
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solution:
As Given plane is flying in east direction.
It throws back some supplies to designated target.
Time taken by the supply to reach the target =10 seconds
g = Acceleration due to gravity = - 9.8 m/s²[Taken negative as object is falling Downwards]
As we have to find distance from the ground to plane which is given by d.
d =
= meters
Distance from the ground where supplies has to be land to plane = Option B =490 meters