Answer:
Average velocity, v = 433 mph
Explanation:
Given that,
Distance covered by airplane from Phoenix, Arizona, to Atlanta, Georgia, d = 1,592 miles
Time taken, t = 3.68 hours
To find,
The average velocity of the airplane.
Solution,
Let v is the average velocity of the airplane. It is equal to the total distance covered divided by total time taken. Its expression is given by :
v = 432.608 mph
or
v = 433 mph
So, the average speed of the airplane is 433 miles per hour.
Answer:
51.2 mi/h
Explanation:
Total distance, d = 100 miles
First 60 miles with speed 55 mi/h
Next 40 miles with speed 75 mi/h
Time taken for first 60 miles, t1 = 60 / 55 = 1.09 h
Time taken for 40 miles, t2 = 40 / 75 = 0.533 h
Time spent to get stuck, t3 = 20 min = 0.33 h
Total time, t = t1 + t2 + t3 = 1.09 + 0.533 + 0.33 = 1.953 h
The average speed is defined as the ratio of total distance traveled to the total time taken.
Average speed =
Thus, the average speed of the journey is 51.2 mi/h.
To find max torque you need component of force that is perpendicular to the direction of vector r. For second part just set the equation above equal to 2308 and solve for Fmax. Only difference is the angle
