Which equation can correctly express the relation between force, acceleration, and mass?

Physics

2 answers:

Roman55 [17]3 years ago

7 0

Hi there!

$\large\boxed{\text{a) F = m * a}}$

According to Newton's Second Law, force is calculated with the formula:

F = m × a, where:

F = force (N)

m = mass (kg)

a = acceleration (m/s²)

natulia [17]3 years ago

7 0

Answer:

The Answer Is A . F= ma

Rerember Newtons second law of motion.

You might be interested in

If 20 beats are produce with one second which of the following frequency could possibly be held by two sound waves traveling thr

musickatia [10]

ANY two frequencies whose difference is 20 Hz.

8 0

3 years ago

Which characteristics is common to the four outer planets in out solar system ?

Lubov Fominskaja [6]

I think the answer is B

8 0

3 years ago

Read 2 more answers

A driver drives for 30.0 minutes at 80.0 km/h, then 45.0 minutes at 100 km/h. She then stops 30 minutes for lunch. She then trav

bija089 [108]

Answer:

b) 68,9 km/h a) picture

Explanation:

In this problem, since velocity is expressed in km/h and time in minutes, we have to convert either time to hours or velocity to km/min. It is easier to use hours.

Using this formula we pass time to hours:

$t_{hours}=t_{min}*\frac{1 h}{60 min}\\30min*\frac{1 h}{60 min}=0,5h\\45min*\frac{1 h}{60 min}=0,75h$

Now we can plot speed vs time (image 1). The problem says that the driver uses constant speed, so all lines have to be horizontal.

Using the values of the speed we calculate the distance in each interval

$d=v*t\\80km/h*0.5h=40km\\100km/h*0.75h=75km$

Using these values and the fact that she was having lunch in the third one (therefore stayed in the same position), we plot position vs time, using initial position zero (image 2, distance is in km, not meters).

Finally, we compute the average speed with the distance over time:

$v_{average}=\frac{155km}{2.25h}=68.9km/h$