Two racquetballs, each having a mass of 147 g, are placed in a glass jar as shown in in the figure below. Their centers lie on a straight line that makes a 45° angle with the horizontal.
To find the net force acting on the two racquetballs in the glass jar, we need to consider the forces acting on each ball individually and then combine them.
First, let's consider the gravitational force acting on each ball. The weight of an object is given by the equation W = m * g, where W is the weight, m is the mass of the object, and g is the acceleration due to gravity. In this case, the mass of each racquetball is given as 147 g.
Next, we need to consider the direction of the gravitational force on each ball. Since the centers of the balls lie on a straight line that makes a 45° angle with the horizontal, the horizontal component of the gravitational force on each ball will cancel out due to symmetry. The only force that remains is the vertical component of the gravitational force.
To calculate the vertical component of the gravitational force, we need to use some trigonometry. The vertical component can be found by multiplying the weight of the ball by the sine of the angle between the line and the vertical direction. In this case, the angle is 45°, so we can find the vertical component by multiplying the weight by sin(45°).
After finding the vertical component of the gravitational force on each ball, we can add them up to get the net force acting on the system of two balls. The net force will be the sum of the individual vertical components of the gravitational forces on each ball.
Finally, we can calculate the net force by adding up the vertical components of the gravitational forces on each ball.
Unfortunately, I can't see any figures as I'm a text-based AI. However, I can still provide you with some information based on the description you provided.
If the racquetballs are placed in a glass jar as described, their centers lying on a straight line that makes a 45° angle with the horizontal, it suggests that the two racquetballs are stacked vertically on top of each other in the jar.
Since the masses of both racquetballs are given as 147 g each, the total mass of the two racquetballs would be:
Total mass = Mass of first racquetball + Mass of second racquetball
Total mass = 147 g + 147 g
Total mass = 294 g
So, the total mass of both racquetballs would be 294 grams.