Briefly explain as long as the questions are answered. In free fall motion, the only force acting on the object is gravity. Suppose you throw a ball vertically upward, describe (in words) the velocity and acceleration of the object while going up, when the object is at its maximum height and when the object is going down.

Briefly explain as long as the questions are answered. In free fall motion, the only force acting on the object is gravity. Suppose you throw a ball vertically upward, describe (in words) the velocity and acceleration of the object while going up, when the object is at its maximum height and when the object is going down.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter3: Accelerated Motion

Section3.3: Free Fall

Problem 50SSC

See similar textbooks

Similar questions

NASA is launching a rocket into space from Earth. This particular rocket burns its fuel for 5 minutes and then turns off its engines. At this point, the rocket keeps floating along through space at a speed of 10 km/s. What is the rocket’s average acceleration during these first 5 minutes? Part 2: How far did the rocket travel during the first 5 minutes? Part 3: The Moon is approximately 3.8.105 km from Earth. At its final speed, how long will it take the rocket to reach the Moon? Part 4: The star nearest to us, called Alpha Centauri, is 4.1.1013 km away. Could this rocket get a man to Alpha Centauri before he dies of old age? (This is a real obstacle to NASA’s plans of exploring other solar systems than our own!) Part 5: The rocket is half way to the Moon when its pilot suddenly notices he forgot his camera! He radios a second rocket crew on Earth and tells them to bring his camera and meet him on the Moon when he lands. Unfortunately, the second rocket can only…
Describe the motion of an object in free fall What is the final velocity of a ball dropped into free fall from rest after a time of 2.00 s? (let g=the acceleration due to gravity) a. zero b. -2g c. 3g d. 4g e. g
1. What is the acceleration of a rock at the top of its trajectory when it has been thrown straight upward? (Is your answer consistent with Newton’s second law?)
Starting from rest (stationary), an object experiences constant acceleration. From the time the acceleration starts, it travels 1.72 x 105km (in the positive direction) in 1 hour. What is the value of this acceleration? Give your answer in m/s2
True or False: An object in free fall depends upon its initial velocity to determine if it will be speeding up or slowing down. What does it mean for an object to be speeding up/slowing down? What is the principle part of free-fall motion that we want to focus on? How does the initial velocity affect the motion of an object in free-fall?
12. SPACEX MARS Rocket-powered sleds are used to test the human response to acceleration. If a rocket-powered sled is accelerated to a speed of 666 m/s in 6.66 seconds, then what is the acceleration and what is the distance that the sled travels?
a. Take a moment to be sure that you understand the distinction between Newtons first two laws. How are they different from each other? b. According to Newtons second law. what is the acceleration of an object if there are no forces acting on it? Is your answer consistent with Newtons first law?
A spacecraft lands on a newly discovered planet orbiting the star 51 Pegasi. To measure the acceleration from gravity on the planet, an astronaut drops a rock from a height of 2 m. A precision timer indicates that it takes the rock 0.71 s to fall to the surface. What is the acceleration from gravity on this planet?
Q10. Sitting in the passenger seat you observe that the drive of the car needs only 3 seconds to come from a speed of 35 mph on the entrance ramp to the interstate to a speed of 70 mph on the interstate. What is the car's acceleration? How much distance does the car cover during those 3 seconds? Find out what the values of acceleration for some sports cars are and give these values here. Include how these values compare to the acceleration that you calculated.
1. Galileo released two bodies of different masses from the Pisa tower to test his theory. Knowing that the height of the tower is 52 m. A) Indicate in the image the characteristics of the movement of a body and deduce its type of movement. B) Write the equations of motion corresponding to the movement of the body. C) Calculate the time it takes to reach the ground. D) How fast will they arrive? Interpret the results. 0.5p E) What speed do we carry halfway? Interpret the results. F) With what speed should we pull up so that the body reaches the ground in 10s. G) Selected and graphic corresponding to the previous movement. Justify your answer.
Newton's Laws of Motion2. How much tension must a rope withstand if it is used to accelerate a 1210-kg car horizontally along a frictionless surface at 1.20m/s^2?
At a given instant in time, a 12kg rock is observed to be falling with an acceleration of 6.25m/s2 (Note that this is different from the gravitational acceleration. This difference must be due to another force, air resistance, pushing up on the rock. What is the magnitude and direction of the net force on the rock? What is the magnitude and direction of the gravitational force acting on the rock? What is the magnitude of the force of the air resistance acting on the rock at this instant?