This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.

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1500 m
a) Step 1: Gawanya grafu katika maeneo matatu. Grafu ya kasi-muda inaweza kugawanywa katika maeneo matatu ili kukokotoa umbali wote uliosafiriwa, kwani umbali ni eneo chini ya grafu ya kasi-muda. • Eneo la kwanza (0s hadi 5s) ni pembetatu. • Eneo la pili (5s hadi 25s) ni mstatili. • Eneo la tatu (25s hadi 30s) ni pembetatu.
Step 2: Kokotoa umbali kwa kila eneo. • Umbali wa kwanza (pembetatu): • Umbali wa pili (mstatili): • Umbali wa tatu (pembetatu):
Step 3: Jumlisha umbali wote. Jumla ya umbali uliosafiriwa na gari ni .
b) Step 1: Tambua kipindi cha kupungua kasi. Kupungua kasi (deceleration) hutokea wakati kasi inapungua. Kwenye grafu, hii ni kati ya na .
Step 2: Kokotoa kupungua kasi. Kupungua kasi ni mteremko wa grafu katika kipindi hicho. Kasi ya awali () = (kwa ) Kasi ya mwisho () = (kwa ) Mabadiliko ya muda () = Thamani hasi inaashiria kupungua kasi. Kwa hivyo, ukubwa wa kupungua kasi ni . Kupungua kasi ya gari ni .
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a) Step 1: Gawanya grafu katika maeneo matatu. Grafu ya kasi-muda inaweza kugawanywa katika maeneo matatu ili kukokotoa umbali wote uliosafiriwa, kwani umbali ni eneo chini ya grafu ya kasi-muda.
This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.