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3 years ago

If an object is being pulled by two forces, one 4 N to the left and the other 2 N to the right, what is the net

Physics

1 answer:

nika2105 [10]3 years ago

6 0

Answer:

Explanation:

subtract rthe two forces to see which is greater

4-2=2

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I need help in this pls i really need a answer

IrinaK [193]

Answer:

In terms of distance, average speed is 20 km/h

In terms of displacement, average speed is 0 km/h.

Explanation:

Total distance:

$= (40.0 - 10.0) + (20.0 - 10.0) + (40.0 - 20.0) \\ = 30.0 + 10.0 + 20.0 \\ = 60.0 \: km$

Total time is 3.0 hours

but:

$average \: speed = \frac{total \: distance}{total \: time} \\$

In terms of distance.

substitute:

$average \: speed = \frac{60.0}{3.0} \\ \\ = 20 \: {kmh}^{ - 1}$

$displacement = ( - 30.0) + 10 .0+ 20.0 \\ = 0$

In terms of displacement:

$speed = \frac{0}{3} \\ \\ = 0 \: {kmh}^{ - 1}$

3 0

3 years ago

Which has the most kinetic energy?

lara31 [8.8K]

Answer:

I think A golf ball shot out of a small cannon

Explanation:

3 0

2 years ago

What are the reactants

Naddika [18.5K]

Answer:

The reagents correspond to substances that react with others, generating a chemical reaction.

Explanation:

Example:

H2 + 02 -> H202

Hydrogen reacts with oxygen in a synthesis reaction, forming a new compound (hydrogen peroxide) called a product.

5 0

3 years ago

A 85 kg lineman tackles a 90 kg receiver. The receiver is running 5.8 m/s, and the lineman is moving 4.1 m/s, at a right angle t

weeeeeb [17]

Answer:

3.59 m/s

Explanation:

We are given that

Mass of lineman,m=85 kg

Mass of receiver,m'=90 kg

Speed of receiver,v'=5.8 m/s

Speed of lineman,v=4.1 m/s

$\theta=90^{\circ}$

We have to find the their velocity immediately after the tackle.

Initial momentum, $P_i=\sqrt{p^2_1+p^2_2}=\sqrt{(85\times 4.1)^2+(90\times 5.8)^2}=627.6 kgm/s$

According to law of conservation of momentum

Initial momentum=Final momentum= $(m+m')V$

$627.6=(85+90)V=175V$

$V=\frac{627.6}{175}=3.59 m/s$

3 0

3 years ago

assuming that the air temperature is constant, what happens to a hot air balloon if it goes too far up in the atmosphere , where

PIT_PIT [208]

Hello!

The balloon explodes, because the pressure builds up inside and the air want to expand. Letter a)

Hugs!

7 0

3 years ago