How much force in Newtons is required to accelerate a 5 kg bowling ball at 2 m/s2
?(1 point)
Responses
3 N
3 N
7 N
7 N
10 N
10 N
2.5 N
2.5 N
The correct answer is 10 N.
Which statement correctly applies to a car that changes its velocity over a period of time?(1 point)
Responses
A nonzero net force is acting on it.
A nonzero net force is acting on it.
The combination of all forces acting on it is zero.
The combination of all forces acting on it is zero.
Forces are acting on it.
Forces are acting on it.
No net force is acting on it.
A nonzero net force is acting on it.
In each of three trials of an investigation, a single force is applied to a mobile. Each time, the mobile acquires a different acceleration. The table shows the relationship between the acceleration and the acting force.
Force (N)
Acceleration (m/s2)
1.2
4.8
0.7
2.8
1.6
6.4
Which phrase best describes a graph that would represent the relationship shown in the table?(1 point)
The best graph that would represent the relationship shown in the table would be a linear graph with a positive slope.
In each of three trials of an investigation, a single force is applied to a mobile. Each time, the mobile acquires a different acceleration. The table shows the relationship between the acceleration and the acting force. Force (N)
1.2 0.7
1.6 Acceleration (m/s2) 4.8
2.8
6.4 Which phrase best describes a graph that would represent the relationship shown in the table?(1 point)
The best phrase that describes a graph representing the relationship shown in the table is "acceleration is directly proportional to force".
In each of three trials of an investigation, a single force is applied to a mobile. Each time, the mobile acquires a different acceleration. The table shows the relationship between the acceleration and the acting force. Force (N)
1.2 0.7
1.6 Acceleration (m/s2) 4.8
2.8
6.4 Which phrase best describes a graph that would represent the relationship shown in the table?(1 point)
Responses
a downward-sloping line drawn on a graph with acceleration shown on the y-axis and force shown on the x-axis
a downward-sloping line drawn on a graph with acceleration shown on the y -axis and force shown on the x -axis
a downward-sloping line drawn on a graph with acceleration shown on the x-axis and force shown on the y-axis
a downward-sloping line drawn on a graph with acceleration shown on the x -axis and force shown on the y -axis
an upward-sloping line drawn on a graph with acceleration shown on the y-axis and force shown on the x-axis
an upward-sloping line drawn on a graph with acceleration shown on the y -axis and force shown on the x -axis
an upward-sloping line drawn on a graph with acceleration shown on the x-axis and force shown on the y-axis
The correct answer is "an upward-sloping line drawn on a graph with acceleration shown on the y-axis and force shown on the x-axis".
To calculate the force required to accelerate an object, you can use the formula: force = mass x acceleration.
In this case, the mass of the bowling ball is given as 5 kg, and the acceleration is given as 2 m/s^2.
So, you need to multiply the mass (5 kg) by the acceleration (2 m/s^2) to get the force required.
Using the formula, force = mass x acceleration:
Force = 5 kg x 2 m/s^2 = 10 N.
Therefore, the correct answer is 10 N.