3 years ago

6. If a person pushes a cart with a force of 40

Physics

1 answer:

Gala2k [10]3 years ago

6 0

F=ma
40=0.5m
m=40/0.5
m=80kg
The answr is b

You might be interested in

A push on a textbook with 10 N moves it to a distance of 2 cm. How much force is need to move it to 4 cm?

uysha [10]

Answer:

20N

Explanation:

Ratio of N to cm-

10:2

so to make 2=4 times 2 so The ratio is now-

20:4

so to move 4 cm you need to push 20N.

8 0

3 years ago

You are walking around your neighborhood and you see a child on top of a roof of a building kick a soccer ball. The soccer ball

irinina [24]

Answer:

69.58 m tall

Explanation:

Pls see attached file

3 0

2 years ago

When does the transfer of thermal energy end?

Dahasolnce [82]

Answer:

I think when the object transferring the thermal energy reaches the same temp as the object absorbing it

Explanation:

6 0

2 years ago

A block is sent up a frictionless ramp along which an x axis extends upward. The figure below gives the kinetic energy of the bl

ss7ja [257]

Kinetic energy =1/2 mv^2

m=2ke/v^2 

m=2(34)/3.6^2 

m=5.24 

force normal = mg 
=5.24 x 9.8 
force normal = 51.4N

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

5 0

3 years ago

A particle moving on a circle has a velocity of 5 m/s and a normal acceleration of 10 m/s^2. What is the radius of the circle?

dybincka [34]

Answer:

Radius of the circle will be 2.5 m

Explanation:

We have given velocity of particle moving in the circle v = 5 m/sec

Acceleration of particle in the circle $a=10m/sec^2$

We have to find the radius of the circle

We know that acceleration is given by $a=\frac{v^2}{r}$

So $10=\frac{5^2}{r}$

$r=\frac{25}{10}=2.5m$

So radius of the circle will be 2.5 m

3 0

3 years ago