Question

A golfer hits a 45 gram golf ball and it lands a distance away from the...

A golfer hits a 45 gram golf ball and it lands a distance away from the tee. The ball had an initial driving velocity of 45 m/s at 45 degrees. The ball lands 10 m on the ground up a slope from the hole. It has to roll down an in

a) Draw a picture of the problem labeling ALL the known variables.

b) What horizontal distance has the ball traveled from the golf tee when it hits the ground before rolling toward the hole?

c) What is the final magnitude of the velocity of the ball as it hits the ground?

d) Assuming all its velocity is transferred to its motion rolling down the hill to the hole, what is the kinetic energy of the ball right after it hits the ground and rolls?

e) What is the height of the hill that the ball must roll down?

f) What is the total energy of the ball when it reaches the hole?

Homework Answers

Answer #1

Mass of golf ball, Mb = 0.045 kg

initial velocity, Vi = 45 m/s

angle , x = 45 degrees

vertical distance travelled by ball on the slope of hill = 10 m

a)

b) horizontal distance the ball traveled from the golf tee when it hits the ground before rolling toward the hole,

R = (Vi2 * sin (2x)) / g

=> R = 452 * sin(90) / 9.8

=> R = 206.63 m

c) magnitude of the velocity of the ball as it hits the ground

The initial and final (as the ball hits the ground) velocity, will be the same, however, the sign will change. The final velocity will be equal to the negative of the initial velocity. here, the magnitude of the velocity of the ball as it hits the ground, Vf = |Vi| => Vf = 45 m/s

d) the kinetic energy of the ball right after it hits the ground and rolls

K = (1/2)mV2

K = 0.5 * 0.045 * 45*45

K = 45.5625 J

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A golfer imparts a speed of 38.2 m/s to a ball, and it travels the maximum...
A golfer imparts a speed of 38.2 m/s to a ball, and it travels the maximum possible distance before landing on the green. The tee and the green are at the same elevation. (a) How much time does the ball spend in the air? (b) What is the longest "hole in one" that the golfer can make, if the ball does not roll when it hits the green?
A golfer tees off from the top of a rise, giving the golf ball an initial...
A golfer tees off from the top of a rise, giving the golf ball an initial velocity of 42.5 m/s at an angle of 30° above the horizontal.The ball strikes the fairway a horizontal distance of 185 m from the tee. Assume the fairway is level. (a) How high is the rise above the fairway? m (b) What is the speed of the ball as it strikes the fairway? m/s
A golfer gives a ball a maximum initial speed of 51.4 m/s. What is the longest...
A golfer gives a ball a maximum initial speed of 51.4 m/s. What is the longest possible hole-in-one for this golfer? Neglect any distance the ball might roll on the green and assume that the tee and the green are at the same level. What is the minimum speed of the ball during this hole-in-one shot?
A golfer hits a ball at a speed of v at an angle of =30 degrees...
A golfer hits a ball at a speed of v at an angle of =30 degrees above the horizontal. The ball lands on a green which is elevated 7 m above the level at which the ball was struck. The ball travels a horizontal distance of 112 m. At what speed v was the ball hit?
A golfer hits a golf ball up a hillside, in a trajectory given y= -0.0015x^2 +...
A golfer hits a golf ball up a hillside, in a trajectory given y= -0.0015x^2 + 0.5x, where y is the vertical height of the ball and x is the horizontal distance of the ball , both in yards. the hillside has a slope 1/8 . if ihe point of impact with the ball is at the origin, then what are the landing coordinates.
A golfer takes three strokes to putt a golf ball into a hole. On the first...
A golfer takes three strokes to putt a golf ball into a hole. On the first stroke, the ball moves 4.4 m due east. On the second, it moves 2.2 m at an angle 20° north of east. On the third, it moves 0.50 m due north. If the golfer had instead hit the ball directly into the hole on the first stroke, what would have been the magnitude (in m) and direction of the ball's displacement? Give the direction...
A ball is thrown horizontally from the top of a 68 m building and lands 110...
A ball is thrown horizontally from the top of a 68 m building and lands 110 m from the base of the building. Ignore air resistance. a. What is the vertical component of the velocity just before the ball hits the ground? c. What is the angle of the ball just before it hits the ground ( in degrees below x-axsis)?
A golf club hits a stationary ball with a force of 45.8N. The impact lasts for...
A golf club hits a stationary ball with a force of 45.8N. The impact lasts for 5ms and the ball ends up with final velocity of 45.8 m/s. What is the mass of the golf ball? What is the kinetic energy of the ball and the power required to accelerate it?
A ball is shot from the ground into the air. At a height of 10.80 m,...
A ball is shot from the ground into the air. At a height of 10.80 m, the velocity is observed to be v = (8.10 m/s) i + (7.10 m/s) j. What is the maximum height that the ball will rise?    What will be the total horizontal distance traveled by the ball?     What is the x-component of the final velocity of the ball? What is the y-component of the final velocity of the ball when it lands back on the...
A ball is thrown horizontally from the top of a 70.0-m building and lands 90.0 m...
A ball is thrown horizontally from the top of a 70.0-m building and lands 90.0 m from the base of the building. Ignore air resistance. What is the velocity just before it hits the ground? In meters per second