<u>Answer</u>
Yes, the car reaches the door before the gate closes.
<u>Explanation</u>
The time taken by the car to reach at the door.
Time = distance / time
= 22/13
= 1.6923 seconds
Time taken by the door to close up to the height of the car.
Distance the door has to move to prevent the car from escaping = 9.1.4 = 7.6 m
From newton's 2nd law of motion;
s = ut + 1/2 gt²
7.6 = 0.6t + 1/2 × 10t²
7.6 = 0.6t + 5t²
50t² + 6t - 76 = 0
Solving this quadrilatic equation,
t = 28.537 seconds
Answer: Yes, the car reaches the door before the gate closes.
Answer:
answer is (c) density is not a characteristics of vibration.
hope it is right answer for it!!
Answer: c Delta
Explanation:
A delta is a landform created by deposition of sediment that is carried by a river as the flow leaves its mouth and enters slower-moving or stagnant water. This occurs where a river enters an ocean, sea, estuary, lake, reservoir, or (more rarely) another river that cannot carry away the supplied sediment.
Hope this helps!!
