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3 years ago

6

You are on a train moving east at 100 meters/second. You run down the aisle at 10 meters/second. If you are running in the same

direction as the train (east), what is your speed with respect to the ground?

1 answer:

VladimirAG [237]3 years ago

8 0

Answer:

I'm pretty sure your speed relative to the ground would be 110 meters per second. However that is just a guess and I'm not 100% sure.

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At the end of the Shock Wave roller coaster ride, the 6000-kg train of cars (includes passengers) is allowed from a speed of 20

Angelina_Jolie [31]

Answer:

56250 N

Explanation:

mass, m = 6000 kg

initial speed, u = 20 m/s

final speed, v = 5 m/s

distance, s = 20 m

Use third equation of motion

$v^{2}=u^{2}+2as$

5 x 5 = 20 x 20 + 2 a x 20

25 = 400 + 40 a

a = - 9.375 m/s^2

Braking force, F = mass x acceleration

F = 6000 x 9.375

F = 56250 N

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3 years ago

A wheel with a weight of 388 N comes off a moving truck and rolls without slipping along a highway. At the bottom of a hill it i

Alisiya [41]

the correct answer is 14m

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3 years ago

1. If Randy races his F-150 down Highway 1 for 2560 meters in 60 seconds, what is his average speed?

Nimfa-mama [501]

The average speed is 42.7 m/s

Explanation:

The speed of an object in uniform motion (=moving at constant speed) is given by the equation:

$v=\frac{d}{t}$

where

v is the speed

d is the distance

t is the time

For the car in this problem, we have:

d = 2560 m (distance)

t = 60 s (time)

Solving the equation, we find the average speed:

$v=\frac{2560}{60}=42.7 m/s$

Learn more about speed:

brainly.com/question/8893949

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2 years ago

The breastbone is posterior to the spine.. Unselected The collarbone is superior to the shoulder blade. Unselected The elbow is

Ilia_Sergeevich [38]

Answer:

The breast bone is anterior to the spine. The collarbone is superior to the shoulder blade. The elbow is proximal to the wrist. The navel is distal to the chin.

Explanation:

The spine, also known as the backbone, is posterior to the breast bone.

The collarbone (also known as the clavicle), which is part of the shoulder girdle, lies superior in position to the shoulder blade (also known as the scapula).

The elbow is the joint between the arm and the wrist. it is proximal to the wrist.

The navel, located on the anterior abdominal wall, is distal to the chin that is part of the face.

7 0

3 years ago

Explorers on a small airless planet used a spring gun to launch a ball bearing vertically upward from the surface at a launch ve

Oksana_A [137]

Answer:

gs = 0.6 m/s^2

Explanation:

Given data:

velocity = 12 m/s

height s = 12t -(1/2) g_s t^2

Given velocity is the derivatives of height

$v(t) = \frac{d}{dt} s(t)$

$= \frac{d}{dt}(12t -\frac{1}{2} g_s t^2)$

$= 12 - g_s t$

when velocity tend to 0 , maximum height is reached

$v(t) = 12 - g_s t$

$0 = 12 - g_s t$

$g_s = \frac{12}{t}$

at t = 20 sec ball reached the max height, so

$g_s = \frac{12}{20} = 0.6 m/s^2$

5 0

2 years ago