0
A 747 airliner reaches its takeoff speed of 173 mih in 35.2 s. What is is the magnitude of its average acceleration?
Wiki User
∙ 11y ago
v = u + at
v = 173 mph
u = 0 mph (assuming taking off from rest)
t = 35.2 s
Thus: 173 = 0 + 35.2a
a = 173/35.2
a = 4.917777... mph/s
(To convert to m.s-2 multiply by 0.44704 => 2.198 m.s-2)
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
How to find magnitude of acceleration?
Rule: Magnitude of acceleration = Change of velocity / Time interval In linear motion, magnitude of acceleration is the measurement of change in speed in speed per unit time. For example: A car reaches a speed of 20 miles per second in 4 seconds, the magnitude of acceleration is 5 miles per second. a = 20 miles/second divided by 4 seconds = 5 miles per second. Acceleration is a vector, which means it has magnitude and direction. To describe accelerated motion completely, the direction also needs to be included. So it would be 5 miles per second in whatever direction it is going.
A car starts from rest and reaches 20 ms in 10 seconds The average acceleration of the car in ms2 is?
10
A ball is dropped off a cliff and reaches a speed of 29.4 meters per second after 3.0 s What is the balls average acceleration?
29.4/3=9.8m/s2
What is the rate of acceleration for a car that reaches a speed of three meters per second from rest in ten seconds?
0.3 meters per second
If a skydiver reaches terminal speed after ten seconds will the skydiver gain more speed during the first second or the ninth second?
I would imagine that it is uniform acceleration up until terminal speed. However, wind resistance will be higher 10000 feet up, so acceleration may be less at the start
A 747 airliner reaches its speed of 170 miles per hour in 35.1seconds What is the magnitude of its average acceleration?
2.165 m/s^2
How to find magnitude of acceleration?
Rule: Magnitude of acceleration = Change of velocity / Time interval In linear motion, magnitude of acceleration is the measurement of change in speed in speed per unit time. For example: A car reaches a speed of 20 miles per second in 4 seconds, the magnitude of acceleration is 5 miles per second. a = 20 miles/second divided by 4 seconds = 5 miles per second. Acceleration is a vector, which means it has magnitude and direction. To describe accelerated motion completely, the direction also needs to be included. So it would be 5 miles per second in whatever direction it is going.
A car starts from rest and reaches 20 ms in 10 seconds The average acceleration of the car in ms2 is?
10
A ball is dropped off a cliff and reaches a speed of 29.4 meters per second after 3.0 s What is the balls average acceleration?
29.4/3=9.8m/s2
When an object reaches its termainal speed its acceleration is zero right?
Acceleration is zero when the object's speed and direction stop changing.
Falling objects drop with an average acceleration of 9.8ms squared If an object falls from a tall building how long will it take before it reaches a speed of 49 ms?
5 seconds
Give example where the velocity of the particle is 0 and acceleration is maximum?
When a pendulum reaches its maximum elongation the velocity is zero and the acceleration is maximum
What is the acceleration due to gravity when a body reaches the ground?
The acceleration is still 9.8 m/s2 but the force applied by gravity is counteracted by the ground.
What is the rate of acceleration for a car that reaches a speed of three meters per second?
Insufficient information.
What happens to the acceleration of a simple pendulum as it approaches the lowest point of its swing?
The velocity reaches a maximum, and the pendulum will begin to decelerate. Because the acceleration is the derivative of the velocity, and the derivative at the location of an extrema is zero, the acceleration goes to zero.
What is the average net force if a car with 1000kg reaches the speed of 28 meters per seconds in 7 seconds?
Acceleration = (change in speed) / (time) = 28/7 = 4 meters per second2Force = (mass) x (acceleration) = (1,000 x 4) = 4,000 kg-m/sec2 = 4,000 Newtons.
Is acceleration greater when the object is thrown vertically or horizontally?
Acceleration is dependent on the initial velocity of how fast the object is leaving the projectile. The vertical acceleration is greater when the object is falling than when the object reaches the peak in height. However, if the object is thrown horizontally and there is no parabola in its shape then there is not as great of an acceleration.
