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igomit [66]
3 years ago
13

A train moving west with an initial velocity of 20 m/s accelerates at 4 m/s2 for 10 seconds. During this time, the train moves a

distance of meters.
Physics
2 answers:
jeka57 [31]3 years ago
7 0

So lets fill out what we have first:

Vi or initial velocity = 20 m/s

Acceleration or a = 4 m/s^2

Time for the motion = 10s

Now, using the four main kinematic equations we can deduce that the best kinematic equation to use in these terms is:

Δx = Vi(t) + 0.5at²

Plug all of our information in:

Δx = (20)(10) + (0.5)(4)(100)

Δx = 400 m

alekssr [168]3 years ago
7 0

Answer:

400 m

Explanation:

answer on ed

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Balance the following equations: CUCO3+H2SO4- CUSO4+H2O+CO2​
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Explanation:

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3 years ago
Two blocks are connected by a light weight, flexible cord that passes over a frictionless pulley.Ifm1=2 kg and m2 = 3 kg, and bl
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Answer:

t = 1.41 sec.

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If we take as our system both blocks, and think about the pulley as redirecting the force simply (as tension in the strings behave like internal forces) , we can apply Newton's 2nd Law, as they were moving along the same axis, aiming at opposite directions, as follows:

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Once we got the value of a, we can use for instance this kinematic equation, and solve for t:

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The y-component of the force F which a person exerts on the handle of the box wrench is known to be 86 lb. Determine the x-compo
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Answer:

x-component of force is  38.18 lb where as magnitude of Force is 93.16

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Considering the triangle in Fig 1

magnitude of perpendicular = P =  12

magnitude of base = B = 5

using Pythagoras theorem

                        H= \sqrt{P^{2} + B^{2}}

                 H= \sqrt{12^{2} + 5^{2}}

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y-component of force is given given as:

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3 years ago
What us the difference between accurate data and reproducible data
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