An airplane from rest accelerates on a runway at 5.50 m/s2 for 20.25 s until it finally takes off the ground. What is the distance covered before takeoff?
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1 point
1120
1130
1150
1140
The distance covered before takeoff can be calculated using the equation:
d = (1/2) * a * t^2
where:
- d is the distance covered
- a is the acceleration (5.50 m/s^2)
- t is the time (20.25 s)
Plugging in the values:
d = (1/2) * 5.50 * (20.25)^2
d = (1/2) * 5.50 * 410.0625
d = 1125.34375
Therefore, the distance covered before takeoff is approximately 1125 meters.
Among the given options, the closest one is 1130, so the answer is 1130.