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3 years ago

Identify the normal force on the shopping cart after 75 newtons of groceries are added to the cart

Physics

2 answers:

fgiga [73]3 years ago

7 0

Answer:

75 N upwards

Explanation:

The weight of the groceries acting vertically downward.

It works as teh action force acting on the ground.

Now according to the Newton's third law, for every action there is an equal and opposite reaction.

So, the reaction on the cart is same in magnitude but opposite in direction.

Action = weight of the groceries = 75 N acting downward

Reaction = Action but the direction is opposite

Normal reaction = 75 N upwards

Anna71 [15]3 years ago

3 0

If the shopping cart is parallel to the ground, the weight is acting vertically downward, then force is equal to weight. The normal force will be acting perpendicular to the ground,and acting upward opposite of the weight.

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2 years ago

if a ball is thrown straight up into the air with an initial velocity of 8080 ft/s, its height in feet after tt second is given

yanalaym [24]

The average velocity for the time period beginning when t=1 and lasting

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Given, $y=80t-16t^2$ gives the height in 't' seconds.

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= Change in distance/Change in time.

The initial time can be taken as 0 s.

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The question is incomplete. Find out the complete question below:

If a ball is thrown straight up into the air with an initial velocity of 80 ft/s, it height in feet after t second is given by $y=80t-16t^2$ .Find the average velocity for the time period beginning when t=1 and lasting

(i) 0.01 seconds

(ii) 0.001 seconds

Learn more about average velocity at brainly.com/question/6504879

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