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3 years ago

What is the magnitude (size) and direction of the cumulative force acting on the car shown in the picture above?

Physics

2 answers:

11Alexandr11 [23.1K]3 years ago

8 0

Answer:

30 N to the right

Explanation:

i got it on study island

mrs_skeptik [129]3 years ago

5 0

Answer:

5070

Explanation:

add them up and then you get your answers 

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What is the magnitude of the sum of the two vectors A = 36 units at 53 degrees, and B =47 units at 157 degrees.

Thepotemich [5.8K]

Answer:

51.82

Explanation:

First of all, let's convert both vectors to cartesian coordinates:

Va = 36 < 53° = (36*cos(53), 36*sin(53))

Va = (21.67, 28.75)

Vb = 47 < 157° = (47*cos(157), 47*sin(157))

Vb = (-43.26, 18.36)

The sum of both vectors will be:

Va+Vb = (-21.59, 47.11) Now we will calculate the module of this vector:

$|Va+Vb| = \sqrt{(-21.59)^2+(47.11)^2}=51.82$

4 0

4 years ago

What is the relationship between lightning and atoms

Rufina [12.5K]

Answer:

The answer is A

Explanation:

Lightning is formed by electrons in the air

6 0

3 years ago

What is 6.02 x 10^4 in standard notation

Vesnalui [34]

I believe you mean 6.02*10^7 but you want to shift the decimal 7 times to the right which would be 60200000 (:

4 0

3 years ago

A machine part has the shape of a solid uniform sphere of mass 245 g and diameter 4.30 cm . It is spinning about a frictionless

Alla [95]

Answer:

Angular acceleration, $\alpha =9.49\ rad/s^2$

Explanation:

It is given that,

Mass of the solid sphere, m = 245 g = 0.245 kg

Diameter of the sphere, d = 4.3 cm = 0.043 m

Radius, r = 0.0215 m

Force acting at a point, F = 0.02 N

Let $\alpha$ is its angular acceleration. The relation between the angular acceleration and the torque is given by :

$\tau=I\times \alpha$

I is the moment of inertia of the solid sphere

For a solid sphere, $I=\dfrac{2}{5}mr^2$

$\alpha =\dfrac{\tau}{I}$

$\alpha =\dfrac{F.r}{(2/5)mr^2}$

$\alpha =\dfrac{5F}{2mr}$

$\alpha =\dfrac{5\times 0.02}{2\times 0.245\times 0.0215}$

$\alpha =9.49\ rad/s^2$

So, its angular acceleration is $9.49\ rad/s^2$ . Hence, this is the required solution.

3 0

4 years ago

How do I love someone

AleksandrR [38]

Answer:

if you need to ask this question, then u dont love them

Explanation:

give them ur whole heart and always wanna cuddle

plza mark me brainliest i need only one moreeeeee

7 0

3 years ago