Question

A golf ball is projected upward from ground level at an initial velocity of 112 ft/sec . The height of a projectile can be modeled by s(t)=-16t^ 2 +v 0 t+s 0 , where t is time in seconds, s 0 is the initial height in feet, and v 0 is the initial velocity in ft/sec .

1. What is the given initial velocity for the golf ball?
a. 112 m/sec
b. 112 km/hr
c. 112 cm/sec
d. 112 ft/sec

Answer 1

The initial velocity provided for the golf ball is 112 ft/sec. The topic is Projectile Motion in Physics, focusing on analyzing the vertical and horizontal components of a projectile's trajectory and the motion's key variables.

Step-by-step explanation:

The initial velocity for the golf ball as given in the question is 112 ft/sec.

The subject matter of this question is Projectile Motion, a sub-topic in Physics that describes the motion of an object thrown or projected into the air, subject only to the acceleration of gravity. Projectile motion can be analyzed in two components: horizontal and vertical. The key variables used in projectile motion problems are initial velocity, time of flight, maximum height, horizontal distance, and the acceleration due to gravity (usually -9.8 m/s2 in SI units, or -32 ft/s2 in imperial units).

Understanding the principles of projectile motion and being able to calculate the time of flight, maximum height, or final velocity of a projectile are crucial skills in physics.