A jet plane starts from rest with an acceleration of 3m/s^2 and makes a run for 35s before taking off. What is the minimum length of the runway?
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- A Boeing 757 takes off at 2/3 of a runway which is 1800.0 m long. Assume it starts from rest and speeds up uniformly with an acceleration of 2.00 m/s². How long does it take the airplane to take off?C. Solve the complete solution (given, unknown, formula, solution) for the following problemsA Boeing 747 "Jumbo Jet" has a length of 64.5 m. The runway on which the plane lands intersects another runway. The width of the intersection is 24.8 m. The plane decelerates through the intersection at a rate of 5.56 m/s2 and clears it with a final speed of 43.1 m/s. How much time is needed for the plane to clear the intersection?
- Nerve impulses in a human body travel at a speed of about 100 m/s. Suppose a woman accidentally steps barefoot on a thumbtack. About how much time does it take the nerve impulse to travel from the foot to the brain (in s)? Assume the woman is 1.80 m tall and the nerve impulse travels at uniform speed.You throw a small rock straight up from the edge of a highway bridge that crosses a river. The rock passes you on its way down, 6.00 ss after it was thrown. What is the speed of the rock just before it reaches the water 27.0 mm below the point where the rock left your hand? Ignore air resistance.A mountain lion jumps to a height of 2.65 m when leaving the ground at an angle of 42.9°. What is its initial speed (in m/s) as it leaves the ground?
- A skydiver falls d1=355m in t1=8.7s before opening her parachute. After the chute opens, she falls an additional d2=780m in t2=116s. Calculate the skydiver’s average speed, v avg in meters per second, during the entire fall.A puma jumps to a height of 2.85 m when leaving the ground at an angle of 42.6°. What is its initial speed (in m/s) as it leaves the ground?Another scheme to catch the Roadrunner has failed. A safe falls from rest from the top of a 25.0 m high cliff toward Wile E. Coyote, who is standing at the base. Wile first notices the safe after it has fallen 15.0 m. How long does he have to get out of the way. Some solutions are using the method of finding the difference of time between 25m and 15m. But some are finding the difference of time between 25m and 10m. Which one is correct?.
- A speed skater increases his speed from 10m/s to 12.5m/s over a period of 3s while coming out of a curve of 20m radius. What is the magnitude of the resultant acceleration as he leaves the curve?A pickup truck is traveling at 30.0 m/s. The driver of the truck applies the brakes and gives the truck a uniform deceleration of 6.50 m/s2² while it travels 20.0 m. What is the speed of the truck in m/s at the end of this distance?A jet plane comes in for a landing with a speed of 120 m/s. The length of the runway is 500 m. From the instant the plane touches the runway, What is the time interval needed to come to rest (in seconds)?