Students are going to conduct an experiment to study the effect of a net force applied to an object on the object’s motion. In each trial of the experiment, the students will apply a net force on the object. They also need to take two other measurements. What are the other quantities they should measure in each trial of the experiment?(1 point)
Responses
mass and acceleration
mass and acceleration
mass and velocity
mass and velocity
acceleration and time
acceleration and time
velocity and time
The other quantities the students should measure in each trial of the experiment are:
1. Mass - The amount of matter in the object being studied. It is an important factor in determining how the object responds to the net force applied to it.
2. Acceleration - The rate of change of velocity of the object. By measuring the acceleration, the students can determine the effect of the net force on the object's motion.
Therefore, the correct answer is:
Mass and acceleration
Use the data table to answer the question. It shows the acceleration of a body when a net force is applied to it.
Net force (N) Mass (kg) Acceleration (m/s2)
5.0 5.0 1.0
10.0 5.0 2.0
20.0 5.0
Which value would complete the last cell?
(1 point)
Responses
100.0
100.0
3.0
3.0
25.0
25.0
4.0
To determine the value that would complete the last cell in the table, we can use the formula:
Acceleration = Net force / Mass
In the first two rows of the table, the acceleration values are calculated by dividing the net force by the mass. Therefore, to find the value for the last cell, we can rearrange the formula:
Net force = Acceleration * Mass
For the last cell, the given values are:
Mass = 5.0 kg
Acceleration = 2.0 m/s^2
Using the formula, we can calculate the net force:
Net force = 2.0 m/s^2 * 5.0 kg = 10.0 N
Therefore, the value that would complete the last cell is:
10.0 N
what the answer
The value that would complete the last cell in the table is 10.0 N.
Use this graph of velocity vs. time for two objects to answer the question.
A velocity versus time graph shows two lines sloping upward from the origin. The line with the higher slope is labeled, C, and the line with smaller slope is labeled, D.
Which statement makes an accurate comparison of the motions for objects C and D?
(1 point)
Responses
Objects C and D have different velocities but the same acceleration.
Objects C and D have different velocities but the same acceleration.
Object D has an acceleration that is greater than the acceleration for C.
Object D has an acceleration that is greater than the acceleration for C.
Objects C and D have different accelerations but the same velocity throughout the motion.
Objects C and D have different accelerations but the same velocity throughout the motion.
Object C has an acceleration that is greater than the acceleration for D.
Object C has an acceleration that is greater than the acceleration for D.
The correct statement that makes an accurate comparison of the motions for objects C and D is:
Object D has an acceleration that is greater than the acceleration for C.
Use the equation for motion to answer the question.
x=x0+v0t+12at2
x
=
x
0
+
v
0
t
+
1
2
a
t
2
An object has a starting position of 2 m, a starting velocity of 15 m/s, and is moving at a constant speed. Which option shows the final position of the object after 1 s?
(1 point)
Responses
30 m
30 m
32 m
32 m
17 m
17 m
60 m
To find the final position of the object after 1 second, we can use the equation for motion:
x = x0 + v0t + (1/2)at^2
Given:
Initial position (x0) = 2 m
Initial velocity (v0) = 15 m/s
Time (t) = 1 s
Acceleration (a) = Since the object is moving at a constant speed, the acceleration is 0 m/s^2.
Plugging in the values into the equation:
x = 2 + 15(1) + (1/2)(0)(1^2)
x = 2 + 15 + 0
x = 17 m
Therefore, the final position of the object after 1 second is:
17 m
The graph of an object's position over time is a horizontal line and y is not equal to 0. What must be true about the object's motion?(1 point)
Responses
The velocity is zero.
The velocity is zero.
The velocity is constant and non-zero.
The velocity is constant and non-zero.
The acceleration is constant and non-zero.
The acceleration is constant and non-zero.
The acceleration is negative.