Kangaroos are known to jump with a take-off speed of 35 km/hr (about 10 m/s). Discuss the design of an enclosure that could be used to restrict the movement of kangaroos of this type
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A person wearing a seatbelt has a good chance of surviving a car crash if the magnitude of the deceleration is no more than 300 m/s2. Over what duration must a crash occur for the occupants of the car to survive being brought to a standstill from an initial speed of 100 km/hr?
In a study kangaroos, one kangaroo could jump straight up to a height of 2.5 m. When moving forward, it left the ground with a velocity of 11.3 m/s at an angle of 27° above the horizontal. A)Sketch both types pf jumps, labeling axes and variables. Collect all known quantities. B)What speed does it need to leave the ground with to reach a height of 2.5 m if it jumps straight up? C)What are the x and y components of...
Section I Problems 1. A rubber ball was thrown at a brick wall with an initial velocity of 10 m/s, and rebounded with a velocity of 8.5 m/s. The rebound was found to take 3.5 x 10-3 sec. What was the acceleration experienced by the ball during the rebound? a. 1.5 m/s acceleration b. 429 m/s? acceleration c. 1.5 m/s2 deceleration d. 429 m/s2 deceleration 2. While taking off, an airplane climbs at 45-degree angle with respect to the ground....
Question 51 point) An airplane, with the mass of 6,641 kg, is about to take off. It taxis 2.18 km [E], then 1.83 km , then 4.88 km [W] on the runway before it takes off. From the beginning of taxiing it takes 45.7 min until the airplane takes off. What is the average speed of the airplane in km/h? Enter your answer up to 5 decimal places. Do not enter units. Your Answer: Answer Question 6 (1 point) The...
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П. On a river bank, Point B is 6.0 km downstream from Point A. Two friends must make the round trip from Point A to Point B and then return to Point A. One rows a boat at a constant speed of 8.00 km/h relative to the water, the other walks on the shore at a constant speed of 3.50 km/h. The velocity of the...
15) During an equestrian show jumping competition, a rider and her horse need to jump over a fence that is 1.5 m tall. They take off from the ground with a horizontal velocity of 6.2 m/s and a vertical velocity of 2.5 m/s, giving them a projection speed of 6.7 m/s and a projection angle of 22°. The center of mass of the horse and rider is 1.94 m above the ground at the instant of takeoff, and for a...
At a constant speed it takes a car 10 seconds to circumnavigate a traffic circle (a.k.a. round-about, roundie, rotary) where the path of travel has a diameter of 20.3 m. Determine the acceleration of the auto in km/hr/s. determine the angular velocity of travel in rad/hr.
An object could accelerate continuously at 10.0 m/s2, how far would it travel and how long would it take to reach: (a) the speed of sound, 334 m/s; (b) the escape speed of a rocket from the earth, 11.2 km/s; (c) 10% of the speed of light? Assume it starts from rest
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I walking eastbound till I walk 8 miles, then charge my direction to north and continued to walk till I walk another 6 miles. So my position with reference to the initial point is (a) 8 miles (b) 10 miles (c) 12 miles (d) 14 miles The average speed of an auto (in ft/s) travelling 200 miles northbound in 5 hours, is approximately (a) 59 (b) 68 (c) 47 (d) 76 The average speed (in mi/hr) of...
dynamics help an airplane
takes off with constant speed
An airplane A takes off as shown with a constant speed equal to o -210 km/h. The path of the airplane is described by the equationy x2, where k 6x 10 * m 1. Using the component system shown, provide the expression for the velocity and acceleration of the airplane when x = 370 m. Express the velocity in m/s and the acceleration in m/s path of A O 1 ノ)...