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
Elan Coil [88]
3 years ago
9

A ball thrown vertically upward is caught by the thrower after 1.76 s. find the initial velocity of the ball. the acceleration o

f gravity is 9.8 m/
Physics
1 answer:
konstantin123 [22]3 years ago
7 0

Answer;

  = 8.624 m/s

Explanation;

Time of flight= 4s. (0.88 s to reach highest point and 0.88 s to come back from highest point.)

Neglecting air resistance, the time of ascend is equal to time of descend for projectile.

It means the ball is at the highest point at time 0.88 s.

Using the equation;

V = Vo + at

Where, V is the final velocity which is Zero, Vo is the initial velocity ,g is the gravitational acceleration, 9.8 m/s², t is the time.

V = Vo - gt ;   g is negative because it is against the gravity .

Vo = gt

     = 9.8 m/s² × 0.88 s

     = 8.624 m/s

You might be interested in
Science in the study of the natural world through. And.
Lyrx [107]
You need to finish the question
6 0
3 years ago
Name this from taco bell and get brainlest answer :)
lys-0071 [83]
There’s nothing! No pictures
5 0
3 years ago
Read 2 more answers
Jogger runs 400 m East in 120 s, then turns around and runs 250 m West in 90 seconds. Calculate the following values.
RSB [31]
First, we must recall that distance is the total length traveled by an object in which the direction of the motion does not matter. Meanwhile, displacement is the distance of the object from its starting point which means the directions matters for displacement. 

Now, speed is distance over time while velocity is displacement over time. Since we're talking about the same object's motion, the total time traveled is (120 + 90) = 210 seconds.

Now, the total distance traveled by the object is (400 + 250) = 650 m. Meanwhile the total displacement traveled by the object is  400 m, East + 250 m, West = 150 m, East.

Now, to find the speed and velocity, we just divide the values of distance and displacement, respectively, over time. Thus, we have

speed = 650 m / 210s ≈ 3.095 m/s
velocity = 150 m, East /210 s ≈ 0.714 m/s, East

Now, rounding the values up to 2  significant digits, we have

a) speed = 3.1 m/s
b) velocity = 0.71 m/s, East


8 0
3 years ago
Why hot air balloon rises up in air n large ships Floyd in water​
marshall27 [118]

Answer:

Hot air is less dense than cool air; the heated air causes the balloon to rise simply because it is lighter than an equal volume of cold air.So hot air balloon rises up in air.

Large ships float in water as their density is lesser than the water so.

7 0
3 years ago
Carla draws two circuit diagrams that connect the same components in different ways, as shown.
Scorpion4ik [409]

Answer:

Circuit A is a series circuit

The total resistance in Circuit A is greater than that in Circuit B

Explanation:

The missing diagram is here attached. For circuit A, considering that in a series circuit, the current through each load is the same and the total voltage across the circuit is the sum of the voltages across each load. Moreover, current flowing through each resistor in a parallel circuit is different, depending on the resistance. Therefore, we can say that when resistors are connected in parallel, more current flows from the source than flow for any of them individually, so the total resistance is lower.

4 0
3 years ago
Read 2 more answers
Other questions:
  • what are the common elements that make up series and parallel circuits , and how are circuits diagrammed?​
    14·1 answer
  • A car traveling west at 70 miles per hour for 3 hours covers a distance of
    11·1 answer
  • An electron is traveling with initial kinetic energy K in a uniform electric field. The electron comes to rest momentarily after
    12·1 answer
  • Suppose you first walk 12.5 m in a direction 20° west of north and then 24 m in a direction 40° south of west as shown in the fi
    6·1 answer
  • Find the unbalanced force acting on the object.
    10·1 answer
  • What happens when a substance undergoes a physical change?
    11·2 answers
  • The solar system is part of the?
    13·2 answers
  • Explain the difference between cool air and warm air
    12·1 answer
  • Highlight the correct terms:
    14·1 answer
  • If it takes 3.5 hours for the hogwarts express, moving at a speed of 120 mi/hr, to make it from platform 9 and 3/4 to hogwarts,
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!