a) What is Bond’s speed with respect to the ground at the takeoff point in m/s and mph? How realistic is this estimate and why? b) What is the location of the landing point with respect to the takeoff point? How realistic is this estimate and why? c) WhatisBond’sspeedatlandinginm/sandmph?Howrealisticisthisestimateandwhy? d) WhatareBond’stangentialandnormalspeedwithrespecttothesurfaceoftherunwayatthe landing point, in m/s and mph? How realistic is this estimate and why?
Gravitational force
In nature, every object is attracted by every other object. This phenomenon is called gravity. The force associated with gravity is called gravitational force. The gravitational force is the weakest force that exists in nature. The gravitational force is always attractive.
Acceleration Due to Gravity
In fundamental physics, gravity or gravitational force is the universal attractive force acting between all the matters that exist or exhibit. It is the weakest known force. Therefore no internal changes in an object occurs due to this force. On the other hand, it has control over the trajectories of bodies in the solar system and in the universe due to its vast scope and universal action. The free fall of objects on Earth and the motions of celestial bodies, according to Newton, are both determined by the same force. It was Newton who put forward that the moon is held by a strong attractive force exerted by the Earth which makes it revolve in a straight line. He was sure that this force is similar to the downward force which Earth exerts on all the objects on it.
Problem 3. James Bond is pursued by evil henchmen across a ski resort. He ends up at the top of a high jump runway, whose slope is 36deg. With nowhere else to go and without his trusty Walther PPK, he has no option but to go for it. He pushes himself off to an initial speed of V0=2 m/s and slides down the runway. The kinetic friction coefficient between his waxed wood skis and the snow is 0.10. The level of the takeoff point of this runway is H=50m below the level of the launch point. At the takeoff point, the runway is horizontal. Below that point, the runway reverts to a 36deg slope. Ignore air resistance.
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a) What is Bond’s speed with respect to the ground at the takeoff point in m/s and mph? How realistic is this estimate and why?
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b) What is the location of the landing point with respect to the takeoff point? How realistic is this estimate and why?
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c) WhatisBond’sspeedatlandinginm/sandmph?Howrealisticisthisestimateandwhy?
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d) WhatareBond’stangentialandnormalspeedwithrespecttothesurfaceoftherunwayatthe
landing point, in m/s and mph? How realistic is this estimate and why?
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