Kim chooses a bowling ball with a mass of 10 kg. The acceleration of the bowling ball once it hits the lane is 4 m/s2 . How could you predict the final velocity of the bowling ball, if the initial velocity is 0 m/s2 , or at rest? How many Newtons of force did Kim use to bowl the ball?

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
9 hours ago

To predict the final velocity of the bowling ball after it has been rolling for a certain period of time, you can use the following equation from kinematics:

\[ v_f = v_i + a \cdot t \]

Where:

  • \( v_f \) is the final velocity,
  • \( v_i \) is the initial velocity (0 m/s in this case),
  • \( a \) is the acceleration (4 m/s²),
  • \( t \) is the time in seconds that the ball has been accelerating.

Since the initial velocity \( v_i \) is 0, the equation simplifies to:

\[ v_f = a \cdot t \]

To determine \( v_f \), you need to know the time \( t \) for which the ball has been accelerating at 4 m/s².

Next, we can calculate the force that Kim used to bowl the ball using Newton's second law of motion:

\[ F = m \cdot a \]

Where:

  • \( F \) is the force in Newtons,
  • \( m \) is the mass of the bowling ball (10 kg),
  • \( a \) is the acceleration (4 m/s²).

Substituting the values:

\[ F = 10 , \text{kg} \cdot 4 , \text{m/s}^2 = 40 , \text{N} \]

So, Kim used 40 Newtons of force to bowl the ball.