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8090 [49]
3 years ago
15

Goal posts at the ends of football fields are padded as a safety measure for players who might run into them. How does thick pad

ding around the goal post reduce injuries to players?
Physics
2 answers:
zepelin [54]3 years ago
7 0

The answer given by E2020 is

"The padding around the goal post increases the time of the collision between the player and the post, which decreases the force exerted to bring the player to a stop"

gulaghasi [49]3 years ago
4 0

Explanation :

Goal posts at the ends of football fields are padded as a safety measure for players who might run into them.

This is due to thick padding around the goal post reduce injuries to players. In a physics point of view, this would decrease the force.

According to Newton's second law, F = m a

or F=\dfrac{m\times v}{t}

The thick padding increases the time of interaction of the player and the post. As a result, the force will decrease.

Hence, the chances of injury can be reduced.

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Why are fossil fuels considered nonrenewable resources if they are still forming beneath the surface today?
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3 years ago
A person gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. The cart travels for
mash [69]

Answer:

Only a backward force is acting, no forward force.

Explanation:

  • Once released from the initial push, in absence of friction, the shopping cart would continue moving forward at a constant speed forever.
  • As it would move at a constant speed, no net force would be acting on it.
  • So, if it is gradually slowing, there must  be a net force producing an acceleration in a direction opposite to the movement.
  • This force is the kinetic friction force, and is the only force acting on the cart in the horizontal direction.
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8 0
3 years ago
The sales price of a product is $2 per unit; the variable cost is $1 per unit; and fixed costs total $1,000. how many units must
irakobra [83]

Answer:

<u><em>1000 units for breakeven</em></u>

Explanation:

Let x be the number of units sold at breakeven.

The total sales at the point would be $2x.

Variable costs would be $1x and fixed costs are $1000.

Total costs are = $1x + $1000

At breakeven: Sales = Costs

Sales =m Costs

$2x = $1x + $1000

$1x = $1000

x = 1000 units.

At 1000 units the sales are equal to the costs ("breakeven").

4 0
1 year ago
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