1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
saul85 [17]
1 year ago
10

a placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. half the crowd hopes the ball will clear

the crossbar, which is 3.05 m high. when kicked, the ball leaves the ground with a speed of 20.4 m/s at an angle of 48.0° to the horizontal.
Physics
1 answer:
Alekssandra [29.7K]1 year ago
3 0

The ball will clear the crossbar since the maximum height it attained is greater than 3.05 m.

<h3>Time of motion of the ball</h3>

The time of motion of the ball is calculated as follows;

x = (v cosθ) t

36 = (20.4 cos48) t

36 = 13.65t

t = 2.64 seconds

<h3>Maximum height reached by the ball</h3>

h = (v sinθ)t - ¹/₂gt²

h = (20.4 sin48)(2.64) -  (0.5)(9.8)(2.64²)

h = 5.87 m

Thus, the ball will clear the crossbar since the maximum height it attained is greater than 3.05 m.

Learn more about maximum height here: brainly.com/question/12446886

#SPJ1

You might be interested in
The device that is made up of many single slits that diffract light and form a diffraction pattern , is called
Sergeeva-Olga [200]

Gọi là máy quang phổ kế

7 0
3 years ago
Read 2 more answers
If you do 1500 J of work hoisting a 20 kg bale of hay , to what height did you lift it
strojnjashka [21]

Explanation:

W = PE

W = mgh

1500 J = (20 kg) (9.8 m/s²) h

h = 7.65 m

Round as needed.

4 0
3 years ago
What is Elasticity? (best answer will get marked brainliest)
Firdavs [7]

Answer:

In economics, elasticity is the measurement of the percentage change of one economic variable in response to a change in another.

An elastic variable (with an absolute elasticity value greater than 1) is one which responds more than proportionally to changes in other variables. In contrast, an inelastic variable (with an absolute elasticity value less than 1) is one which changes less than proportionally in response to changes in other variables. A variable can have different values of its elasticity at different starting points: for example, the quantity of a good supplied by producers might be elastic at low prices but inelastic at higher prices, so that a rise from an initially low price might bring on a more-than-proportionate increase in quantity supplied while a rise from an initially high price might bring on a less-than-proportionate rise in quantity supplied.

Elasticity can be quantified as the ratio of the percentage change in one variable to the percentage change in another variable, when the latter variable has a causal influence on the former. A more precise definition is given in terms of differential calculus. It is a tool for measuring the responsiveness of one variable to changes in another, causative variable. Elasticity has the advantage of being a unitless ratio, independent of the type of quantities being varied. Frequently used elasticities include price elasticity of demand, price elasticity of supply, income elasticity of demand, elasticity of substitution between factors of production and elasticity of intertemporal substitution.

Elasticity is one of the most important concepts in neoclassical economic theory. It is useful in understanding the incidence of indirect taxation, marginal concepts as they relate to the theory of the firm, and distribution of wealth and different types of goods as they relate to the theory of consumer choice. Elasticity is also crucially important in any discussion of welfare distribution, in particular consumer surplus, producer surplus, or government surplus.

In empirical work an elasticity is the estimated coefficient in a linear regression equation where both the dependent variable and the independent variable are in natural logs. Elasticity is a popular tool among empiricists because it is independent of units and thus simplifies data analysis.

A major study of the price elasticity of supply and the price elasticity of demand for US products was undertaken by Joshua Levy and Trevor Pollock in the late 1960s..

4 0
3 years ago
Read 2 more answers
You decide to ride your bike for 30 minutes, raising your heart rate to the middle of your target heart rate zone. What type of
a_sh-v [17]
It would have to be cardio i think not totally sure
4 0
4 years ago
Read 2 more answers
What’s the awnser to 1 and 2
slava [35]

Answer: for 1 is number 1

and for 2 is 3

Explanation:

7 0
3 years ago
Other questions:
  • How can I change my Brainly username?
    5·2 answers
  • An 800 N box is pushed across a level floor for a distance of 5.0 m with a force of 400 N. How much work was done on this box.
    12·1 answer
  • A 92-kg skier is sliding down a ski slope that makes an angle of 40 degrees above the horizontal direction. the coefficient of k
    5·1 answer
  • A runner has a speed of 5m/s and a mass of 130 kg what is his kinetic energy?
    13·2 answers
  • The total electric field consists of the vector sum of two parts. One part has a magnitude of E1 = 1300 N/C and points at an ang
    10·1 answer
  • Raul wants to increase his upper body and cardiovascular strength. He plans to go to the gym and use his backyard swimming pool
    5·1 answer
  • Which of the following statements is TRUE? Which of the following statements is TRUE? A) The smaller a gas particle, the slower
    7·1 answer
  • What is the Lorentz force law used for?
    11·2 answers
  • Which of the following factors determines the strength of the frictional force between two surfaces
    6·1 answer
  • I will give Brainliest please help!​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!