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A hot-air balloonist, rising vertically with a constant velocity of magnitude v= 5.00 m/s, releases a sandbag at an instant when the balloon is a height h= 40.0 m above the ground . After it is released, the sandbag is in free fall. For the questions that follow, take the origin of the coordinate system used for measuring displacements to be at the ground, and upward displacements to be positive. Take the free fall acceleration to be g= 9.80 m/s^2.
1. Compute the position of the sandbag at a time 1.50 s after its release.
2. Compute the velocity of the sandbag at a time 1.50 s after its release.
A 79 kg pole-vaulter falls from rest from a height of 4.6 m onto a foam-rubber pad. The pole-vaulter comes to rest 0.30 s after landing on the pad. compute the athlete's velocity just before reaching the pad.
In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.00×1016kg and a radius of 9.90km, What is the escape speed from the asteroid
A thunderstorm drops 6.0cm of rain on a city that covers an area of 33 km by 45 km. approximation the number of raindrops that fell during the storm. You could assume the diameter of a raindrop is 2 mm.
Two small objects are hung, from a point, on strings 50 cm long. they each have mass .06 grams and are given equal charge, What is the magnitude of the charge on each object
A ray of sunlight is passing from diamond into crown glass; the angle of incidence is 36.00°. Determine the angle between the refracted blue and red rays in the crown glass
The pilot of an aircraft wishes to fly due west in a 33.10 km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 190 km/h what must its speed relative to the ground be.
What is weight of the parachutist
Two large identical flat metal plates are placed parallel to one another, seperated by a small distance compared to their linear size. One plate is given a charge per unit area 2.50E-5 C/m2 and the other a charge per unit area -2.50E-5 C/m2. Using..
The coefficient of static friction between the ladder and the ground is 0.55, and the ladder makes a 50.0° angle with the ground. Explain how far up the ladder can an 900 N person climb before the ladder begins to slip?
Inside the house where the temperature is 20C, we measure the length of an aluminum rod with a micrometer made of steel, find the length of the cold rod according to the cold micrometer
A 1442 kg car is traveling south, and a 2028 kg van is traveling west. what is the speed of each vehicle
A ball rolls off a table and falls 0.70 m to the floor, landing with a speed of 4.3 m/s. What is the magnitude of the acceleration of the ball just before it strikes the ground
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