1. Chinthu chimayenda pa liwiro losasintha la 10 m/s. Werengani mphamvu ya chinthucho.
Zodziwika :
Kulemera (m) = 1 kg
Liwiro (v) = 10 m/s
Kufunidwa: linear momentum (p)
Yankho:
Fomula ya momentum yolunjika:
p = mv
p = mzere wolunjika, m = kulemera, v = liwiro
Mphamvu yolunjika:
p = mv = (1)(10) = 10 kg m/s 2
[irp]
2. Chipolopolo cha makilogalamu awiri ndi chipolopolo cha makilogalamu anayi chimayenda pa liwiro losasintha la 20 m/s. Kodi mphamvu ya mabuloko ndi yotani?
Zodziwika:
Kulemera kwa chipika A (m A ) = 2 kg
Kulemera kwa chipika B (m B ) = 4 kg
Liwiro la chipika A (v A ) = 20 m/s
Liwiro la chipika B (v B ) = 20 m/s
Kufunidwa: Linear momentum ya block A (p A ) ndi linear momentum ya block B (p B )
Yankho:
Mphamvu yolunjika ya block A :
p A = m A v A = (2) (20) = 40 kg m/s
Mphamvu yolunjika ya block B :
p B = m B v B = (4)(20) = 80 kg m/s
[irp]
3. Buloko la makilogalamu awiri limayenda pa liwiro losasintha la 2 m/s ndipo buloko la makilogalamu awiri limayenda pa liwiro losasintha la 4 m/s. Dziwani momwe mabaloko alili.
Zodziwika:
Kulemera kwa chipika A (m A ) = 2 kg
Kulemera kwa chipika B (m B ) = 2 kg
Liwiro la chipika A (v A ) = 2 m/s
Liwiro la chipika B (v B ) = 4 m/s
Kufunidwa: mphamvu yolunjika ya mabuloko
Yankho:
Mphamvu yolunjika ya block A :
p A = m A v A = (2) (2) = 4 kg m/s
Mphamvu yolunjika ya block B:
p B = m B v B = (2)(4) = 8 kg m/s
[irp]
4. Chinthu cholemera makilogalamu 5 chili pamalo opumulira. Kodi mphamvu yolunjika ya mphamvuyo ndi yotani?
Zodziwika:
Kulemera (m) = 5 kg
Liwiro la chinthu (v) = 0
Kufunidwa : mphamvu yolunjika (p)
Yankho:
p = mv = (5)(0) = 0
[wpdm_package id='1155′]
- Mavuto ndi mayankho a Linear Momentum
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