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
bekas [8.4K]
3 years ago
10

Suppose you throw a ball vertically upward with a speed of 49 m/s. Neglecting air friction, what would be the height of the ball

be 2.0 second later?
Physics
1 answer:
vlabodo [156]3 years ago
6 0

Answer:

78.4 m

Explanation:

Using newton's equation of motion,

S = ut + 1/2gt²......................... Equation 1

Where S = Height, t = time, u = initial velocity, g = acceleration due to gravity.

Note: Taking upward to be negative, and down ward positive

Given: u = 49 m/s, t = 2.0 s, g = -9.8 m/s²

Substitute into equation 1

S = 49(2) - 1/2(9.8)(2)²

S = 98 - 19.6

S = 78.4 m

Hence the height of the ball two seconds later = 78.4 m

You might be interested in
A force of 5 N is applied to the end of a lever that has a length
Klio2033 [76]

Answer:

The answer is 10Nm

Explanation: I ended up just messing around with the numbers, I multiplied 5 and 2 got 10 as my answer and it was right.

4 0
3 years ago
How to measure the external diameter of a sphere
DanielleElmas [232]
Sphere is that the circular objects in the two dimensional space (1) circle
(2) disk. Two dimensional space is a set of points and the distance of that point,The two points of Sphere that length and center.
Sphere can constructed as the named of surface form circle about any diameter. circle is the special type of the revolution replacing the circle,
sphere is the distance r is the radius of the ball and circle is the center of mathematical ball,as the center and the radius of the sphere is to respectively.
The ball and sphere has not be maintained mathematical references as a solid references. A sphere of any radius is centered at the number of zero.
4 0
3 years ago
A amusement park moves riders in a circle at a rate of 6.0m/s if the radius is 9.0 meters what is the acceleration of the ride
oksano4ka [1.4K]

Centripetal acceleration is (speed-squared) / (radius)

CA = (6 m/s)² / (9 m)

CA = (36 m²/s²) / (9 m)

CA = (36/9) (m²/m·s²)

<em>Centripetal acceleration = 4 m/s²</em>

4 0
3 years ago
A solid cylinder of mass 10 kg is pivoted about a frictionless axis thought the center O. A rope wrapped around the outer radius
taurus [48]
Torque acting dowward = 6  x 0.5 = 3 Nm

Torque acting to the right = 5 x  1 = 5 Nm

5 - 3 = 2 Nm

inertia = 1/2 mr^2

0.5 x 10  x 1^2 = 5 kg-m^2
2/5 = alpha  = 0.4 rad /s^2

Hope this helps
5 0
3 years ago
Read 2 more answers
Near the surface of the earth, objects in free fall (but not terminal velocity) experience
Mice21 [21]
D. Constant Acceleration
7 0
3 years ago
Other questions:
  • Humans start from a single cell. Eventually, as cells divide, they start to differentiate, or specialize. Some cells are special
    8·1 answer
  • What brings greater concentration of dissolved nutrients to ocean surface
    6·2 answers
  • Bandwidth is the: Select one: A. number of frequencies that can be broadcast through a medium. B. number of cycles per second th
    8·1 answer
  • A 49-year-old female was referred for mammography, but she is very apprehensive after reading about the risk of ionizing radiati
    7·1 answer
  • If you have a 200g sample of a radioactive isotope that has a half life of 50 years, hc
    10·1 answer
  • A state trooper is traveling down the interstate at 20 m/s. He sees a speeder traveling at 50 m/s approaching from behind. At th
    13·1 answer
  • Lab report of experimrnt to find the series resonance of acceptor circuit and parallel resonance of rejector circuit in RLC?
    13·1 answer
  • How fast is a lightning flash?
    7·2 answers
  • A spring has a spring constant of 5N/cm. What is its extension when loaded with 15N?
    9·2 answers
  • 5, the following equation shows the position of a particle in time t, x=at2i + btj where t is in second and x is in meter. A=2m/
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!