akuajay akuajay

24-07-2021
Physics

contestada

A one tonne crane increases its speed from 30km/h to 108km/h in 35 seconds. Calculate the change in momentum

Respuesta :

ANUSARA ANUSARA

24-07-2021

Answer:

21.67kgms-1

Explanation:

30kmh-1 = ( 30× 1000) ÷ 3600 = 8.33 ms-1

108 Kmh-1 = (108 × 1000) ÷ 3600 = 30ms-1

change in momentum = ∆mv

= 1000000 kg ( 30 -8.33) ms-1

= 21.67 ×10^6 kgms-1

Answer Link

Otras preguntas

Water and ammonium nitrate (nh4no3 react in an endothermic reaction in a beaker. what would you expect to observe during this reaction? the beaker will get cold

what percentage of Christians are catholic ?

What do you understand by fumigation?

2) "The French Revolution is most important for having changed subjects to citizens.

When was the attack on Pearl Harbor

Confederate soldiers during the Civil War enjoyed a geographic advantage over Union soldiers because A) Southern troops disrupted Union trade routes. B) the

what does an antagonist usually do in a story

How old was olivier messiaen when he wrote his first piece of music?

Files with what two file extensions are commonly known as tarballs??

If cancer runs in your family, what will your doctor likely do? screen you regularly for early detection complete follow-up visits by phone have you introduce y