3 years ago

An airplane flies with a constant speed of 560 miles per hour. How far can it travel in 1 1/2 hours?

1 answer:

Alik [6]3 years ago

5 0

You would multiply the speed by the time. So the answer would be 840 miles.

You might be interested in

alina1380 [7]

Answer:

As force = tension in string so tension in string is 400N

Explanation:

8 0

3 years ago

wel

The answer is
A. True

8 0

3 years ago

lbvjy [14]

Answer:

A. 33.77 m/s

B. 6.20 s

Explanation:

Frame of reference:

Gravity g=-9.8 m/s^2; Initial position (roof) y=0; Final Position street y= -21 m

Initial velocity upwards v= 27 m/s

Part A. Using kinematics expression for velocities and distance:

$V_{final}^{2}=V_{initial}^{2}+2g(y_{final}-y_{initial})\\V_{f}^{2}=27^{2}-2*9.8(-21-0)=33.77 m/s$

Part B. Using Kinematics expression for distance, time and initial velocity

$y_{final}=y_{initial}+V_{initial}t+\frac{1}{2} g*t^{2}\\==> -0.5*9.8t^{2}+27t+21=0\\==> t_1 =-0.69 s\\t_2=6.20 s$

Since it is a second order equation for time, we solved it with a calculator. We pick the positive solution.

8 0

3 years ago

Mashutka [201]

Work is force times distance. So here we have
W=(5000N)x(3000m)=1.5x10^7J
Or 15MJ (megajoules)

5 0

3 years ago

Alisiya [41]

Note: I believe this requires a illustration to be shown.

Answer: Wherever the persons original spot was before he/she walked 15 feet to the left.

4 0

3 years ago