Ask question

Ask question

All categories

julia-pushkina [17]

3 years ago

10

Edgar is walking 0.5 M/S toward the back of a train that is traveling forward at 6.0 M/S west. What is Edgars velocity relative

to the ground?

1 answer:

iragen [17]3 years ago

8 0

Answer:

Just in 1 dimension

Vpg = Vps + Vsg

Where

Vpg= relative to the ground

Vps= person relative to the ship

Vsg= ship relative to the ground

Vpg= Vps+Vsg ;

Vpg= 0.5 + 6

Vpg= 6,5 m/s

You might be interested in

Which of the following is true about Viscosity of liquids:

White raven [17]

Viscosity of liquids is essentially the 'thickness' of the liquid. For instance, honey and water have different viscosities. Honey has a higher one and therefore, liquids with high viscosity do not flow as well as liquids with low viscosity (water).

4 0

2 years ago

Read 2 more answers

When a body of mass 0.25 kg is attached to a vertical massless spring, it is extended 5.0 cm from its unstretched length of 4.0

lora16 [44]

Answer:

$d=0.165m$

Explanation:

Given

$m=0.25kg$ , $x_{1}=5cm*\frac{1m}{100cm}=0.05m$ , $x_{2}=4cm*\frac{1m}{100cm}=0.04m$ , $v=2\frac{rev}{s}$

The tension of the spring is

$F_{k}=K*x_{1}=m*g$

$K=\frac{m*g}{x_{1}}$

$K=\frac{0.25kg*9.8m/s^2}{0.05m}=49N/m$

The force in the spring is equal to centripetal force so

$F_{c}=\frac{m*v^2}{r}$

$v=w*r=2\pi*r$

But Fc is also

Fc=KxΔr

$F_{c}=K*(r-x_{2})$

Replacing

$m*4\pi^2*r=K*(r-x_{2})$

$0.25kg*4\pi^2*r=49*(r-0.04m)$

$r=0.205m$

total distance is

$d=0.205-0.04=0.165m$

3 0

2 years ago

Alex places 2 cubes side-by-side on a ramp made of wood. Cube #1 is ice and Cube #2 is wood

zmey [24]

Answer:

Explanation:

The sandpaper block did not move because the forces of friction and gravity were balanced.

6 0

2 years ago

3. What methods are you using to test this (or each) hypothesis?.

Gnoma [55]

Answer:

my method is guessing it works 50% of the time :)

Explanation:

4 0

2 years ago

Read 2 more answers

Which planet is least like earth? Mars,Venus, or Jupiter

Brums [2.3K]

Answer:

mars, reason why is because they both are diff from the size

Explanation:

7 0

2 years ago

Read 2 more answers