3 years ago

Please help! this is timed!

Physics

2 answers:

sweet-ann [11.9K]3 years ago

7 0

Im pretty sure it is the first answer

Alik [6]3 years ago

5 0

Answer:

I'm positive that it is the first one. Sorry if it wrong.

You might be interested in

What is economic development

ivolga24 [154]

Answer:

Economic Development is the creation of wealth from which community benefits are realized. It is more than a jobs program, it's an investment in growing your economy and enhancing the prosperity and quality of life for all residents. Economic development means different things to different people.

6 0

3 years ago

What is a trip valve

AnnyKZ [126]

Pressure‐sensing trip valves are for control applications where a specific valve/actuator action is required when supply pressure falls below a specific point.

7 0

4 years ago

What is the kinetic engery of a baseball five feet above the ground when it has already fallen 32 feet

mylen [45]

The answer is 25 ...

6 0

4 years ago

true or false. because the speed of an object can change from one instant to the next, dividing the distance covered by the time

scoundrel [369]

true. Because the speed of an object can change from one instant to the next, dividing the total distance covered by the time of travel gives. average speed.

3 0

3 years ago

Read 2 more answers

A car travels along a horizontal road which is an arc of radius 125m. the greatest speed at which the car can travel without sle

hammer [34]

The coefficient of friction between the Tyre and the ground is 0.11

<u>Explanation:</u>

Given:

Radius of the track (r)=125 m.

Speed with which the car travels (v) =42 km/hr

=11.67 m/s

To Find:

Coefficient of friction between the Tyre and the ground.

Formula to be used:

$Centripetal\ force\ Fc= mv^2/r\\\\=m\times 11.67^2/125\\\\=1.08 m$

We know that,Frictional force is equal to centripetal force

Frictional force=μmg

therefore 1.08 m=μmg

Cancelling "m" on both sides we get,

μ=1.08/g=1.08/9.8

=0.11

Thus the coefficient of friction between the Tyre and the ground is 0.11

7 0

3 years ago