Ask question

Ask question

All categories

3 years ago

8

A ball is tossed upward to height of 10m and falls back to its original position the total trip up and down takes approximately

2s how long did it rise

1 answer:

Eddi Din [679]3 years ago

6 0

Answer:

1s

Explanation:

The time going up equals the time going down. So if the total time was 2s, the time rising was half that, or 1s.

You might be interested in

And object has traveled 200 m in 20 seconds what is its average speed

BabaBlast [244]

It is going 10m speed

8 0

3 years ago

The terminal velocity of a person falling in air depends upon the weight and the area of the person facing the fluid. Find the t

AVprozaik [17]

Answer:

v=115 m/s

or

v=414 km/h

Explanation:

Given data

$A_{area}=0.140m^{2}\\ p_{air}=1.21 kg/m^{3}\\ m_{mass}=80kg$

To find

Terminal velocity (in meters per second and kilometers per hour)

Solution

At terminal speed the weight equal the drag force

$mg=1/2*C*p_{air}*v^{2}*A_{area}\\ v=\sqrt{\frac{2*m*g}{C**p_{air}*A_{area}} }\\ Where C=0.7\\v=\sqrt{\frac{2*9.8*80}{1.21*0.14*0.7} }\\ v=115m/s$

For speed in km/h(kilometers per hour)

To convert m/s to km/h you need to multiply the speed value by 3.6

$v=(115*3.6)km/h\\v=414km/h$

5 0

3 years ago

What is the formula you use to determine the gravitational potential energy of a object

kozerog [31]

Gravitational potential energy, relative to some level =

   (mass of the object)
times
       (height above the reference level)
times
   (acceleration due to gravity) .

4 0

3 years ago

100 POINTS AND BRAINLIEST.

olya-2409 [2.1K]

Answer:

I think the answer must be A.

5 0

2 years ago

The product of charge through, and potential across, an electrical device is:

melomori [17]

The option is Work.

The product of charge and potential is equal to the energy. Adn, as we know work is related to energy as the capacity to do work.

Alos, because, Potential is given as, V = E/q
or E = Vq
Thus, t<span>he product of charge through, and potential across, an electrical device is:work
</span>

5 0

3 years ago

Read 2 more answers