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3 years ago

HELP ASAP THIS ASSIGNMENT LOCKS TODAY PLEASEEEE

Physics

1 answer:

Valentin [98]3 years ago

3 0

Answer:

I'm going with a and y I dont want it to be wrong tho

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Force = mass x acceleration

zloy xaker [14]

The answer is (B 60N) hope it helps and have a good day!

4 0

4 years ago

Please I need help its timed-

leva [86]

Answer:

Explanation:

6 0

3 years ago

The normal force equals the magnitude of the gravitational force as a roller coaster car crosses the top of a 58-m-diameter loop

dedylja [7]

Answer:

16.87 m/s

Explanation:

To find the speed of the car at the top, when the normal force is equal the gravitational force, we just need to equate both forces:

$N = P$

$m*a_c = mg$

$a_c$ is the centripetal acceleration in the loop:

$a_c = v^2/r$

So we have that:

$mv^2/r = mg$

$v^2/r = g$

$v^2 = gr$

$v = \sqrt{gr}$

So, using the gravity = 9.81 m/s^2 and the radius = 29 meters, we have:

$v = \sqrt{9.81 * 29}$

$v = \sqrt{284.49} = 16.87\ m/s$

The speed of the car is 16.87 m/s at the top.

5 0

3 years ago

A 55kg cart is pushed by a force of 225 n. what is the carts acceleration?

gayaneshka [121]

F=ma so a=F/m
a=225/55=4.09 m/sec^2

3 0

4 years ago

Which conditions are usually the effect of a low air pressure system? clear, dry weather cloudy, wet weather cold, dry weather h

qaws [65]

Your answer is hot dry waether

5 0

3 years ago