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3 years ago

Write a short story (3 - 5 sentences) that describes a situation with the motion experiences in this graph. Please Help Me.

Physics

1 answer:

Pavel [41]3 years ago

8 0

Answer:

Over time, the velocity of a moving object increaeses. As you see in the graph at point a and b, the object just started to take off. Then, at point C it gained momentuem. Then at point e and f it reached it peak of velocity.

Explanation:

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A railroad car of mass M moving at a speed v1 collides and couples with two coupled railroad cars, each of the same mass M and m

Tatiana [17]

Answer:

Explanation:

Given

mass of each railroad is M

first railroad is moving with velocity $v_1$ and other two's with $v_2$

conserving Momentum

$Mv_1+2Mv_2=3M v_f$

where v_f is the final velocity of combined system

$v_f=\frac{v_1+2v_2}{3}$

(b)Initial Kinetic Energy

$=\frac{1}{2}Mv_1^2+\frac{1}{2}2Mv_2^2$

$=\frac{1}{2}Mv_1^2+Mv_2^2$

Final Kinetic Energy

$=\frac{1}{2}3Mv_f^2=\frac{1}{6}M(v_1^2+4v_2^{2}+4v_{1}v_2)$

Loss in Kinetic Energy

$=\frac{1}{2}Mv_1^2+Mv_2^2-\frac{1}{6}M(v_1^2+4v_2^{2}+4v_{1}v_2)$

$=M(v_1-v_2^2)^2$

7 0

4 years ago

Which will happen if a ball is thrown upward?

Setler [38]

Answer:

Explanation:

this is because of gravity

3 0

2 years ago

A Pitot-static tube is used to measure the velocity of helium in a pipe. The temperature and pressure are 44oF and 24 psia. A wa

leonid [27]

Answer:

V=203 ft/s

Explanation:

answer is available in word document named "attach 1" due to some technical error in maths equation. please find the attached document

Download docx

4 0

4 years ago

Read 2 more answers

The weight of the windsurfer is 700 newtons. Calculate the moment exerted by the windsurfer on the sailboat

borishaifa [10]

Hey, I think someone should help u cause I’m stuck too

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3 years ago

what do you mean by momentum? avehicle is runing with a velocity of 5m/s. it the momentum of the vehicle is 5000kg m/s. what is

Fantom [35]

Momentum is simply a quantity that measures the impact of a moving body over something is due to the mass it posseses or the velocity with which it is moving. Mathematically,ut is the product of mass and velocity of a body. It is represented by capital p...(P) P=mv Solution to the problem: we know P=mv For mass,eliminate m from the equation, m=P/v Put values, m=5000/5=1000kg

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3 years ago