All categories

3 years ago

How far will a football travel if it is booted at a speed of 15 m/s and travels for 3 seconds?

Physics

1 answer:

stealth61 [152]3 years ago

8 0

Answer:

d= 45 m

Explanation:

speed = distance / time

15= d/ 3

d= 45 m

You might be interested in

On a position vs. time graph for an object, a horizontal line segment indicates that the object is(1 point)

babunello [35]

Answer:

moving at a constant rate. (could be zero m/s)

7 0

2 years ago

A train moving at 5 m/sec passed a track gang and then accelerated uniformly a rate of 1.2 m/sec/sec for 5 min. How far did the

Amanda [17]

Answer:

S = V0 t + 1/2 a t^2

S = 5 m/s * 300 s + 1/2 * 1.2 m/s * (300 s^2)

S = 1500 m + .6 * 90000 m = 55,500 m

Check: V0 = 5 m/s

V2 = V0 + a t = 5 + 1.2 * 300 = 365 m/s

Vav = (V1 + V2) / 2 = (5 + 365) / 2 = 185 m/s (note uniform motion)

S = 185 * 300 = 55,500 m

We calculated V2 above at 365 m/s the speed after 300 sec

3 0

3 years ago

If two persons do the same amount of work , they may have different power ? why ?

iris [78.8K]

Hey there mate :)

Even if two persons are given the same work load, the speed of the work done gets different by the energy of those persons.

No one is sure that he/she can complete the work within the time. He may or may not.

Also, the physical characteristics makes the work different. If one person has so much power to work all day, the other person may not have.

Therefore, even if two persons do the same amount of work , they may have different power.

4 0

2 years ago

Weight is influenced by which of the following

nignag [31]

Out of the given options, weight is influenced by mass and gravity

Answer: Option A

Explanation:

The object's mass is defined as the quantity of a matter with which the object is formed. It can change its state of matter but the quantity will remain the same. However, the weight is defined as how much force gravity exerts on the object's mass to pull it.

The mass is always same irrespective the location but the weight may vary from one place to the other while talking for the bigger picture. For example, the object's weight may be 60 kg on Earth but when it is measured on the moon, it will be lesser.

The weight of an object generally has nothing doing with the volume and it doesn't depend solely on the gravitational pull. The mass plays a crucial role.

$W=F=m \times g$

6 0

3 years ago

Which is an example of a mixture?

Doss [256]

Answer:

An example of a mixture would be salt water

3 0

3 years ago

Read 2 more answers