EVERYDAY SCIENCE

Detailed explanation-1: -a. If the golf ball starts with a speed of 2.0 m/s and slows at a constant rate of 0.50 m/s², what is its velocity after 2.0 s? =-1.0 m/s c. Describe the motion of the golf ball in words and with a motion diagram.

Detailed explanation-2: -Determine the object’s original velocity by dividing the time it took for the object to travel a given distance by the total distance. In the equation V = d/t, V is the velocity, d is the distance, and t is the time.

Detailed explanation-3: -The initial velocity is defined as the speed of the ball as it travels 2 feet after impact with the striker. The measurement is made by electronically timing the ball as it passes through a light source and ballistic screen separated by a fixed distance of about 6.283 feet.

Detailed explanation-4: -Conclusion: The magnitude of the velocity of the ball is 26.3 m/s for the parabolic motion just before it hits the ground and this greater than the 17.1 m/s for the velocity of the ball that falls straight downward. Notice the figure above has the positive y direction upward.

Detailed explanation-5: -Reasoning: Speed increases at a rate of 10 m/s (actually 9.8 m/s) every second. Thus after 10 seconds, the speed is 10 x 10 = 100 m/s.