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

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

Name: At a given instant in time, a 12kg rock is observed to be falling with
Uploaded: 2024-03-20T06:57:57.000Z
Channel: Bartleby
Description: 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.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter4: Forces In One Dimension

Section: Chapter Questions

Problem 6STP

See similar textbooks

Similar questions

An astronaut moves in space with a constant speed. If he is far from the influence of gravity of any star or planet, what is the minimum force required in order for him to keep on moving? a) force equal to its weight b) force equal to its mass c) force depending on its speed d) zero
A person weighing 0.70 kN rides in an elevator that has an upward acceleration of 1.5 m/s 2. What is the magnitude of the force of the elevator floor on the person?
A strong boy throws a rock straight up with a force of 100 N. At what rate does the rock initially accelerate upwards, in m/s2? Assume the mass of the rock is 2 kg and the local gravitational acceleration is 9.74 m/s2.
A 72 kg person is standing inside an elevator. The elevator is moving upward at 2.61 m/s and is increasing speed at a rate of 1.48 m/s^2. What is the normal force that is acting on the person?
Tom travels to the moon for NASA. While on the moon, the total weight of Tom and his lunar exploration suit is 224 N. His suit has a mass of 50 kg. The acceleration due to gravity is 9.81 m/s2 on Earth and 1.67 m/s2 on the moon. What would his weight be on Earth without the heavy suit? 1. 490 N 2. 830 N 3. 987 N 4. 1304 N
A person of weighing 0.83 kN rides in an elevator that has an upward acceleration of 0.8 m/s2. What is the magnitude of the force of the elevator floor on the person, in newtons?
An elevator filled with passengers has a mass of 1763 kg. ONLY NEED HELP ON D. OTHER PROBLEMS HAVE BEEN SOLVED. PLEASE HELP. (a) The elevator accelerates upward from rest at a rate of 1.20 m/s2 for 2.00 s. Calculate the tension in the cable (in N) supporting the elevator. (19,410.63 N) (b) The elevator continues upward at constant velocity for 9.02 s. What is the tension in the cable (in N) during this time? (17,295.03 N) (c) The elevator decelerates at a rate of 0.600 m/s2 for 4.00 s. What is the tension in the cable (in N) during deceleration? (16,237.23 N) (d) How high has the elevator moved above its original starting point, and what is its final velocity? (Enter the height in m and the final velocity in m/s.) HEIGHT= ? FINAL VELOCITY= ?
An elevator packed with people has a mass of 1950 kg. 1) The elevator accelerates upward (in the positive direction) from rest at a rate of 1.9 m/s2 for 2.3 s. Calculate the tension in the cable supporting the elevator in newtons. 2) The elevator continues upward at constant velocity for 8.3 s. What is the tension in the cable, in newtons, during this time? 3)The elevator experiences a negative acceleration at a rate of 0.45 m/s2 for 2.1 s. What is the tension in the cable, in newtons, during this period of negative acceleration? 4)
While on skydiving, your force equipment measured that the air resistance you experience is a constant 100N. If your mass is 57kg, what is your acceleration as you decend to the ground? (Assume that the scalar acceleration due to gravity is g=9.8m/s2) -11.554 m/s2 All choices are wrong -8.046 m/s2 -9.8 m/s2
A model rocket is fired vertically from rest. It has a constant acceleration of 15.3 m/s^2 for the first 1.50 s. Then it’s fuel is exhausted, and it is in free fall. The rocket has a mass of 92.1g, the mass of the fuel is much less than 92.1 g. Ignore air resistance. What is the upward net force on the rocket during the first 1.50 s after liftoff? What is the upward force exerted on the rocket by the burning fuel? How long does the rocket travel? How long after liftoff does the rocket return to the ground?
/ A 50.0?? woman inside an elevator is standing on a scale. How will the acceleration of the elevator affect the scale reading? Calculate the scale reading when (a) the elevator is accelerating upward at ay=3.0 m/s2, (b) the elevator is going up with a constant velocity of vy=2.0 m/s, (c) the elevator is at rest, (d) the elevator is going down with acceleration ay=-3.0 m/s2, and (e) the elevator is going down with a constant velocity vy= -2.0 m/s.
A customer sits in an amusement park ride in which the compartment is to be pulled downward in the negative direction of a y axis with an acceleration magnitude of 1.58 g, with g = 9.80 m/s2. A 0.492 g coin rests on the customer's knee. (g) How long does the coin take to reach the compartment ceiling, 2.6 m above the knee? What are projections of the actual force on the coin on (h)x-axis, (i)y-axis, (j)z-axis and projections of the apparent force according to the customer's measure of the coin's acceleration on (k)x-axis, (l)y-axis, (m)z-axis?