All categories

3 years ago

A man walks 30m to the west, then 5m to the east in 45 seconds. What is the average velocity?

Physics

2 answers:

solong [7]3 years ago

8 0

1.28m/s the velocity is found by distance/time.

ryzh [129]3 years ago

6 0

Average speed- (35m/45s)= 7/9 meters per second.
Average velocity-(30w + 5m E) / (45s)= 25 m/s West.
Hope this helps. :)

You might be interested in

The time, t, required to drive a fixed distance varies inversely as the speed, r. It takes 3 hr at a speed of 14 km/h to driv

kenny6666 [7]

Answer:

time taken with speed 23 km/h will be 1.8 hours or 1 hour 48 minutes

Explanation:

Given:

Time is inversely proportional to the speed

mathematically,

t ∝ (1/r)

let the proportionality constant be 'k'

thus,

t = k/r

therefore, for case 1

time = 3 hr

speed = 14 km/hr

3 = k/14

also,

for case 2

let the time be = t

r = 23 km/h

thus,

we have

t = k/23

on dividing equation 2 by 1

we get

$\frac{t}{3}=\frac{k/23}{k/14}$

$t=\frac{14\times3}{23}$

t = 1.8 hr = or 1 hour 48 minutes ( 0.8 hours × 60 minutes/hour = 48 minutes)

4 0

3 years ago

Please Help

musickatia [10]

The answer is C because <span>this movement is caused by the heat in Earth and creates </span>convection currents. <span>Convection currents in the asthenosphere cause movement of Earth's tectonic plates. </span>

4 0

3 years ago

Read 2 more answers

there is a fish called an archer fish that shoots drops of water at insects resting on branches above the water. If the Archer f

Mariulka [41]

Answer:

=3.5 m/s

Explanation:

y = x tanθ - 1/2 g x² / (u²cos²θ )

y = 0.25 , x = 0.5, θ = 40°

.25 = .50 tan40 - .5 x 9.8x x²/ u²cos²40

.25 = .42 - 2.0875/u²

u = 3.5 m / s.

4 0

3 years ago

Which of the following is a negative environmental impact of using solar

saw5 [17]

Answer:c

Explanation:

7 0

3 years ago

PLS DO THIS FOR ME I NEED DONE ASAP

mart [117]

G g j inj g f d t u u i

8 0

3 years ago