Question

On a level football field a football is projected from ground level. It has speed 8.0...

On a level football field a football is projected from ground level. It has speed 8.0 m/s when it is at its maximum height. It travels a horizontal distance of 70.0 m. Neglect air resistance.  How long is the ball in the air?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Given that the football has a speed of 8m/s when it is at maximum height.

At maximum height vertical velocity becomes zero

So horizontal velocity,

Horizontal distance traveled by the football,

Find the time of flight

=======================

Consider the horizontal motion of the football

There is no acceleration in horzontal direction, so horizontal velocity remains constant.

Horizontal velocity = Horizontal Distance/Time of flight

ANSWER:

=======================

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A football is kicked from ground level with an initial velocity of 24.2 m/s at angle...
A football is kicked from ground level with an initial velocity of 24.2 m/s at angle of 51.0° above the horizontal. How long, in seconds, is the football in the air before it hits the ground? Ignore air resistance.
A projectile is fired from cannon (مدفع) at ground level at 45 degrees with respect to...
A projectile is fired from cannon (مدفع) at ground level at 45 degrees with respect to the horizontal. Neglect air resistance, When the projectile reaches maximum height, The ratio of the horizontal distance traveled by the projectile to maximum height is
A golf ball (m = 50 g) is hit from ground level with an initial speed...
A golf ball (m = 50 g) is hit from ground level with an initial speed of 50 m/s and reaches a maximum height of 25 m. Neglect air drag. a. What is the ball’s total mechanical energy just after it has been hit? b. What is the ball’s potential energy at the maximum height? c. What is the ball’s kinetic energy at the maximum height? d. What is the ball’s speed at the maximum height?
A football kicker is practicing a field goal ick. THe football (on the ground before it...
A football kicker is practicing a field goal ick. THe football (on the ground before it starts) has a initial velocity of 24 m/s at an angle of 40 degrees above the horizontal. The ball flies between two goal posts and hits the right cross bar. The cross bar is 10 ft above the ground. Ignore air resistance. a) What are the x and y components of the intial velocity b) What is the total flight time of the football...
With what speed must a ball be thrown vertically from ground level to rise to a...
With what speed must a ball be thrown vertically from ground level to rise to a maximum height of 40 m? (b) How long will it be in the air?
A metal ball is launched by a sling shot from ground level with an initial speed...
A metal ball is launched by a sling shot from ground level with an initial speed of 13.3 m/s directly upward. Choose upward as the positive direction in your analysis. (a) What is the maximum height above the ground that the ball reaches?_______ m (b) How long does it take to reach the maximum height?__________ s (c) How long does it take to reach the ground after it reaches its highest point?__________s (d) What is its velocity just before it...
A tennis player serves a tennis ball such that it is moving horizontally when it leaves...
A tennis player serves a tennis ball such that it is moving horizontally when it leaves the racquet. When the ball travels a horizontal distance of 11 m, it has dropped 53 cmfrom its original height when it left the racquet. What was the initial speed, in m/s, of the tennis ball? (Neglect air resistance.)   
A football is kicked from ground level at an angle of 47 degrees. It reaches a...
A football is kicked from ground level at an angle of 47 degrees. It reaches a maximum height of 10 meters before returning to the ground. How long will the football spend in the air, in seconds?
A person throws a ball at an initial angle θ0 = 45° from the horizontal with...
A person throws a ball at an initial angle θ0 = 45° from the horizontal with an initial speed of v0 = 20 m⋅s-1. The point of release of the ball is at a height d = 2 m above the ground. You may neglect air resistance. a) How long does it take the ball to reach the highest point of its trajectory? b) What was the maximum vertical displacement of the ball? c) What was the distance of the...
A football is kicked with a speed of 20 m/s at an angle of 37 degrees...
A football is kicked with a speed of 20 m/s at an angle of 37 degrees to the ground. ● (a) What is the maximum height that it reaches? ● (b) How far has it travelled horizontally when it reaches its maximum height? ● (c) What is the total time the football spends in the air?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT