All categories

3 years ago

PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer these correctly!!!! (40pts)

Physics

2 answers:

Cerrena [4.2K]3 years ago

8 0

Answer:

B false

Explanation:

dont have any explanation

777dan777 [17]3 years ago

6 0

Answer:

Explanation:

you see when something is changing directions it is accelerating, not in a sence is speed is changing altho its volocity is (speed and direction)

You might be interested in

Refraction occurs because of changes in the _____________

IrinaVladis [17]

Speed of the beam as it passes from one transparent medium to another

3 0

3 years ago

A 10-kilogram mass is sliding along a frictionless floor with an acceleration of 5 meters per second squared. What is the magnit

Darina [25.2K]

Answer:

50N

Explanation:

Since the floor is frictionless, the net force = mass × acceleration.

given that,

mass = 10kg

and acceleration is 5 m/s²

Thus,

Force = 10 × 5

Force = 50 N

5 0

3 years ago

Madison pushes with a 210-N horizontal force on a 24-kg crate of coffee resting on a warehouse floor. The force of friction on t

kotykmax [81]

Answer:

5.7 m/s^2

Explanation:

First of all, we need to calculate the resultant force on the crate. We have:

- A force of +210 N in the positive direction

- The frictional force of -74 N in the opposite direction

So, the resultant force is

F = 210 N - 74 N= 136 N

So now we can apply Newton's second law to find the acceleration:

$F=ma$

where m=24 kg is the mass of the crate. Re-arranging the equation, we get:

$a=\frac{F}{m}=\frac{136 N}{24 kg}=5.7 m/s^2$

5 0

3 years ago

If a car accelerates at an average rate of 7.92 m/s2. Calculate how long it takes the car to speed up from 6.38 m/s to 34.86 m/s

blondinia [14]

$a = \dfrac{\Delta v}{\Delta t} \\~\\~\\a = \dfrac{v-v_0}{\Delta t} \\~\\~\\7.92 = \dfrac{34.86-6.38}{\Delta t} \\~\\~\\\Delta t = \dfrac{2848}{792} \\~\\~\\ \Delta t = 3+\dfrac{472}{792} \\~\\~\\\Delta t = 3+\dfrac{2^3\cdot(59)}{2^3\cdot(99)} \\~\\~\\\Delta t = 3 + 0.5959\cdots \\~\\~\\\Delta t \approx 3.6$