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
Hatshy [7]
3 years ago
6

A football is thrown at an angle of 30.° above the horizontal. The magnitude of the horizontal

Physics
2 answers:
VladimirAG [237]3 years ago
8 0

Answer:

1.53 s

Explanation:

Initially vertical component of velocity of the ball, uy = 7.5 m/s

Net displacement is vertical direction is zero, Δy =0

Use second equation of motion:

Δy = uy t + 0.5 a t²

Here, acceleration a = -g                           (g =9.8 m/s²)

Substitute all the values and solve for g

0 = 7.5 t -0.5 (9.8)t²

7.5 t = 4.9 t²

t = 1.53 s

just olya [345]3 years ago
4 0

Answer:

Explanation:

Let the initial velocity is u.

ux = 13 m/s  

uy = 7.5 m/s

Angle of projection, θ = 30°

ux = u Cos 30 = 13

u = 15 m/s

Height caught is same

use second equation of motion

h = uy t - 0.5 x gt²

0 = 75. t - 0.5 x 9.8 x t²

t = 1.24 s

You might be interested in
5p - 14 = 8 p + 4 find p
Digiron [165]

Answer:

Explanation:

5p - 14 = 8p + 4

5p = 8p + 18 <-- Moving constants to one side; add the same number of +14 to both sides.

-3p = 18. <-- The same thing with the variable itself.

p = -6 <-- Divide both sides by negative 3.

6 0
3 years ago
Main ingredient of all cells
Sati [7]
Chloroplast...................
7 0
3 years ago
B. Find the velocity of a rider on the ride.
Stells [14]

D

Explanation:

Mutiply and alagrab to subterc

5 0
3 years ago
State the laws of vibration of a stringed Instrument​
olchik [2.2K]
If the length and linear density are constant, the frequency is directly proportional to the square root of the tension.
7 0
3 years ago
A transverse wave on a string is described by the wave function
svp [43]

The period of the transverse wave from what we have here is 0.5

<h3>How to find the period of the transverse wave</h3>

The period of a wave can be defined as the time that it would take for the wave to complete one complete vibrational cycle.

The formula with which to get the period is

w = 4π

where w = 4 x 22/7

2π/T = 4π

6.2857/T = 12.57

From here we would have to cross multiply

6.2857 = 12.57T

divide through by 12.57

6.2857/12.57 = T

0.500 = T

Hence we can conclude that the value of T that can determine the period based on the question is 0.500.

Read more on transverse wave here

brainly.com/question/2516098

#SPJ4

5 0
1 year ago
Other questions:
  • Which of the following statements about large scale mineral extraction is true?
    15·1 answer
  • A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 44.1m/s^2 . The acce
    10·1 answer
  • A 50kg skater at rest on a frictionless rink throws a 2kg ball, giving the ball a velocity of 10m/s. Which statement describes t
    14·1 answer
  • A boy falls and hits his head with an impulse of 20N-s. On cement, the boy would hit for
    8·1 answer
  • Differentiate between sound waves and seismic waves?
    7·2 answers
  • Which vector has a y-component with a length of 4?
    15·1 answer
  • PLEASE HELP AS SOON AS POSSIBLE!!
    10·1 answer
  • How to find density of a gas.
    12·1 answer
  • The equation below can be used to calculate a change in gravitational potential energy. What units must be used for h? Give the
    15·1 answer
  • Bacteria vary somewhat in size, but a diameter of 2.9 μm is not unusual.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!