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
ololo11 [35]
3 years ago
14

A ball is thrown vertically upwards at 19.6 m/s. for its complete trip (up and back down to the starting position), its average

velocity is
Physics
1 answer:
Alex17521 [72]3 years ago
5 0
The average velocity of an object is given by:
Average velocity = total displacement / total time

First, we calculate the time taken to reach the maximum height of the ball. This occurs when the final velocity is 0.
Vf = Vi + at
0 = 19.6 - 9.81 * t
t = 2 seconds

The total trip will be of 4 seconds (2 seconds up, 2 seconds down)

The total displacement is given by:
s = ut + 1/2 * at²
s = 19.6 * 2 - 0.5 * 9.81 * 2²
s = 19.6 meters

This is the distance maximum height, so the total height is
19.6 * 2 = 39.2 meters

Average velocity = 39.2 / 4
Average velocity = 9.8 m/s
You might be interested in
The force exerted on the tires of a car that directly accelerate it along a road is exerted by the
azamat

The force exerted on the tires of a car that directly accelerate it along a road is exerted by the road friction.

<h3>What is force?</h3>

Force is defined as the product of mass and acceleration of an object.

Friction is defined as the force that resists the movement of an object over another.

Therefore, the force exerted on the tires of a car that directly accelerate it along a road is exerted by the road friction.

Learn more about force here:

brainly.com/question/12970081

#SPJ12

7 0
2 years ago
Use the circuit diagram to decide if the lightbulb will light. Justify your answer
elena-14-01-66 [18.8K]

Answer:

It will.

Explanation:

For a circuit to function properly, everything has to be connected. As the diagram shows that everything is connected and there are no gaps, it will light.

3 0
3 years ago
Read 2 more answers
A wire carries a current of 10 amps in a direction of 90 degrees with respect to the direction of an external magnetic field of
Oksi-84 [34.3K]

Answer:

15 N

Explanation:

The magnetic force on a piece of current-carrying wire is given by:

F=ILB sin \theta

where

I is the current in the wire

L is the length of the piece of wire

B is the magnetic field strength

\theta is the angle between the direction of B and I

In this problem:

I = 10 A

B = 0.3 T

L = 5 m

\theta=90^{\circ}

Substituting into the equation, we find

F=(10 A)(0.3 T)(5 m) sin 90^{\circ}=15 N

6 0
3 years ago
How does gamma radiation differ from alpha or beta particle radiation?
earnstyle [38]

Answer:

1.

Explanation:gamma rays are the most powerful in the electromagnetic spectrum and they are a result of a radioactive atom.they aren't made of matter but just energy as a wave.

3 0
3 years ago
Which subatomic particle is NOT found in the nucleus of an atom? *
Vinil7 [7]

Answer:

Electrons

Explanation:

Only Protons and Neutrons are found in the nucleus

3 0
3 years ago
Read 2 more answers
Other questions:
  • Two fish swimming in a river have the following equations of motion:
    10·1 answer
  • A wind blows at 100 km / h from the east. An aircraft points due north and sets off. In still air its speed is 150 km / h. What
    9·1 answer
  • 10 points!HELP!!!! PLEASE, URGENT (PHYSICS)
    5·1 answer
  • A car's velocity changes from 0 m/s to 40 m/s in 5 seconds. What is the average acceleration of the car? (Show work)
    15·2 answers
  • Which characteristic does inertia describe
    13·2 answers
  • A particle traveling around a circle at constant speed will not experience an acceleration.
    6·1 answer
  • Which is not an example of unbalanced force acting on an object
    6·1 answer
  • The drum shown in the figure has a radius of 0.40 m and a moment of inertia of 2.3 kg • m2 about an axis perpendicular to it thr
    6·1 answer
  • Which of the following is not a step toward planning your goals ?​
    14·1 answer
  • A lead weight falls from a height of 6 m onto a muddy surface. It comes to rest after penetrating 0.4 cm into the surface. What
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!