If the acceleration due to gravity on the Earth’s surface is consistent at a location then why does a bowling ball fall faster than a feather?
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If the acceleration due to gravity on the Earth’s surface is consistent at a location then why does a bowling ball fall faster than a feather?
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- How long will it take a rock dropped from 2.0 m above the surface of Mars to reach the ground?A satellite orbiting the moon very near the surface has a period of 110 min. Use this information, together with the radius of the moon from the table on the inside of the back cover, to calculate the free-fall acceleration on the moon’s surface.if two small asteroids (M1 = 4 x 10^9 kg and M2 = 3 x 10^10 kg) are floating about 2,000 meters apart in deep space, what is the force of gravity acting on each asteroid and what is the rate of acceleration of each at this point?
- A new planet is found with a density one third as much at Earth and a radius twice that of Earth. What is the acceleration due to gravity on this new planet?An object is thrown upward with a speed of 15.2 m/s on the surface of planet X where the acceleration due to gravity is 1.8 m/s². What is the maximum height reached by the object? Answer: CheckA spacecraft flying horizontally over the surface of the moon at an elevation of 1500m with a speed of 350m/s, drops a package with a mass of 1200kg to astronauts on the surface. Use gm= 1.6m/s2 for the acceleration due to gravity on the Moon. a)How long does it take the package to hit the surface after it is dropped? b)How far ahead (distance) of the package’s landing spot should the package be released? c)What is the velocity of the package just before it hits the surface? d)What is the magnitude of the velocity of the package just before it hits the surface of the Moon?
- We learned in class that even though astronauts look like they are floating in space, they really are not weightless. Calculate the acceleration due to gravity of an astronaut on the International Space Station at an altitude of 402 km. (Remember that the radius needed is from the center of the Earth.)A 944-kg automobile rounds a curve at a constant speed of 35 m/s, undergoing an acceleration of magnitude 1.9 m/s2 as it proceeds. What is the radius of the curve? (Answer in m.)By what factor will the acceleration due to gravity change if the mass of a planet is double and the size of the planet is also doubled?
- An object is dropped from rest a distance d near the surface of Earth and takes time t. If the same object is dropped from rest from a different height and takes time 4t, it must have fallen a distance 2 d 1/2 d O 1/4 d 16 d 4 dBecause of Earth’s rotation about its axis, a point on the equator has a centripetal acceleration of 0.034 0 m/s2 , whereas a point at the poles has no centripetal acceleration. (a) Show that, at the equator, the gravitational force on an object (the object’s true weight) must exceed the object’s apparent weight. (b) What are the apparent weights of a 75.0-kg person at the equator and at the poles? (Assume Earth is a uniform sphere and take g 5 9.800 m/s2.)