A 2 kg toy car is held at a height of 3.75 m above the floor....

Question

Question

A 2 kg toy car is held at a height of 3.75 m above the floor.

Calculate the Joules of work done on or by the object in? (I would like to know the steps so if I see another type of question I know each step)

Answer 1

Answer #1

Solution:

Given:

mass (m) = 2 kg

Height (h) = 3.75 m

Since, Work done on the object = gravitational Potential energy stored in the object

Thus : Work done on the object = m g h = (2 kg)(9.81 m/s²)(3.75 m) = 73.58 Joules

Here, g is acceleration due to gravity = 9.81 m/s²

Answer 2

Similar Homework Help Questions

You carry a 2.20 kg bag of groceries at a height of 0.600 m above the...

You carry a 2.20 kg bag of groceries at a height of 0.600 m above the level floor at a constant velocity of 1.10 m/s across a room that is 1.70 m long. Find the total work done on the groceries during the process.
A 350 kg box is pulled 6.40 m up a 30 degree inclined plane by an...

A 350 kg box is pulled 6.40 m up a 30 degree inclined plane by an external force of 5000 N that acts parallel to the frictionless plane. A) Calculate the work done by the external force. Answer in kJ. B) Calculate the work done by gravity. Answer in kJ. C) Calculate the work done by the normal force. Answer in J. Please answer this in a step-by-step fashion, I would like to see the setting up so that I...
A .1 kg toy car with 0.01 kg, 0.01 m radius solid wheels is pushed into...

A .1 kg toy car with 0.01 kg, 0.01 m radius solid wheels is pushed into a spring with a 1 N/m spring constant until it has compressed by 0.02 m. The toy car is then released, after which it rolls without slipping on level ground. It is still attached to the spring, so its motion is harmonic (back and forth) motion. a. For this part assume that the mass of the wheels is zero: what is the frequency of...

Suppose a 1350-kg elevator car is lifted a distance 41 m by its cable at a...

Suppose a 1350-kg elevator car is lifted a distance 41 m by its cable at a constant speed, assuming the frictional force on the elevator has a constant value of 1575 N. Calculate the work done on the elevator by its cable, in joules. Calculate the work done by the gravitational force on the elevator, in joules, during this process. Calculate the total work done on the elevator, in joules.
A 1000-kg car and a 2000-kg are to the same height. Raising the more massive car...

A 1000-kg car and a 2000-kg are to the same height. Raising the more massive car requires A) twice as much work B) more than four times as reach work. C) four times as much work. D) less work. E) as much work. At one instant are object in free fall is moving downward at 50 m/s. One second later its speed is A) 50 m/s. B) 100 m/s C) 55 m/s D) 25 m/s E) 60 m/s Which of...
2. A toy car has a mass of 0.400 kg. It gets thrown at 9.0 m/s...

2. A toy car has a mass of 0.400 kg. It gets thrown at 9.0 m/s toward a spring-held block with a mass of 1.1 kg. As a result of the impact, the car bounces backward from the block. It does not stick. The block compresses the spring by a maximum distance of 24 cm. After it bounces, the car is traveling 1/3 as fast as it was before it hit the block. It does not stick What is the...

1 hold a 20.0 kg box 1.50 meters above the floor for a time of 15.0...

1 hold a 20.0 kg box 1.50 meters above the floor for a time of 15.0 seconds. The weight of the box is 196 N. How much work do I do on the box? A) 294 Joules B) 30.0 Joules C) 19.6 Joules D) 0 Joules 11) In order to do work on an object A) the object must move. B) it is necessary that friction be present. C) the force doing the work must be directed perpendicular to the...
4. A mass of 2 kg is held 4 meters above the ground. The gravitational potential...

4. A mass of 2 kg is held 4 meters above the ground. The gravitational potential energy of this object, relative to the ground, is ___. 5. Which is easier, stopping a 1000 kg car traveling at 40 m / s or a 2000 kg car traveling at 20 m / s? 8. Suppose an airplane fires bullets in the same direction it travels. Does the momentum of the plane increase, decrease or remain the same? Explain
String is wrapped around an object of mass M= 0.5 kg and moment of inertia I= 0.02 kg·m2.

String is wrapped around an object of mass M= 0.5 kg and moment of inertia I= 0.02 kg·m2. You pull the string with your hand straight up with some constant force F such that the center of the object does not move up or down, but the object spins faster and faster (see the figure). This is like a yo-yo; nothing but the vertical string touches the object. When your hand is a height y0= 0.24 m above the floor,...

1. A pole is held vertically by attaching wires at a height of 13.4 m above...

1. A pole is held vertically by attaching wires at a height of 13.4 m above the ground. The other end of each wire is anchored in the ground at a distance of 9.54 m from the base of the pole. The pole makes a right angle with the ground. What is the length of each wire? 2. A bug crawls 2.25 m along the base of a wall. Upon reaching a corner, the bug's direction of travel changes from...