3 years ago

How much power is expended if you lift a 60 n crate 10 meters in 1 second?

1 answer:

3 0

It's P =W/t is equation 1 . Since W=F×S.. put it in equation 1 ,we get P=FS/t. Put F =60N , S=10m and time =1 s in equation 1. Then we have P=60×10/1s which is 600 Watts. So power of the body is 600Watts

You might be interested in

If you are sitting in a bus that is traveling along a straight, level road at 100 km/hr., you are traveling at 100 km/hr too. (a

aleksandr82 [10.1K]

Answer:

hhhhhhhhhhhhhhhhhhhhhhhhhhhh

Explanation:

hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

8 0

3 years ago

Find the period of the leg of a man who is 1.83 m in height with a mass of 67 kg. The moment of inertia of a cylinder rotating a

In-s [12.5K]

Answer:

$T = 1.108\,s$

Explanation:

The period of a physical pendulum is:

$T = \sqrt{\frac{I_{O}}{m\cdot g \cdot L} }$

$T=2\cdot \pi \sqrt{\frac{\frac{1}{3}\cdot m \cdot L^{2} }{m\cdot g\cdot L} }$

$T=2\cdot \pi \sqrt{\frac{L }{3\cdot g} }$

The length of the leg is approximately the height of the person:

$L = 0.915\,m$

The period is:

$T = 2\cdot \pi \sqrt{\frac{0.915\,m}{3\cdot (9.807\,\frac{m}{s^{2}} )} }$

$T = 1.108\,s$

4 0

3 years ago

What are 3 wether instuerments i know anemometer and barometer but the third one and what there job!!

BaLLatris [955]

Well, those are good ones. Now how about a thermometer to measure the temperature ?

7 0

3 years ago

Cheetahs, the fastest of the great cats, can reach 50.0 miles/hour in 2.22 s starting from rest. Assuming that they have constan

elena55 [62]

Answer:

$10.07m/s^2$

Explanation:

Information we have:

velocities:

initial velocity: $v_{i}=0mph$ (starts from rest)

final velocity: $v_{f}=50mph$

time: $t=2.22s$

Since we need the answer in $m/s^2$ , we nees to convert the speed to meters per second:

$v_{f}=\frac{50miles}{1hour}(\frac{1hour}{3,600s} )(\frac{1609.34meters}{1mile} ) \\\\v_{f}=\frac{50*1609.34}{3600} m/s\\\\v_{f}=22.35m/s$

We find the acceleration with the following formula:

$a=\frac{v_{f}-v_{i}}{t}$

substituting the known values:

$a=\frac{22.35m/s-0m/s}{2.22s}\\ \\a=10.07m/s^2$

the acceleration is 10.07 $m/s^2$

8 0

3 years ago

Read 2 more answers

Rank the following compounds in order of decreasing vapor pressure.

liubo4ka [24]

Hello ? What compounds are you referring to ?

3 0

3 years ago