a car reaches a velocity of 20 m/s with an acceleration of 2 m/s^2 . How far will it travel while it is accelerating if it is (a). initially at rest (b). initia
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a car reaches a velocity of 20 m/s with an acceleration of 2 m/s^2 . How far will it travel while it is accelerating if it is (a). initially at rest (b). initially moving at 10 m/s ?
1 Jawaban
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1. Jawaban yourvin
◾ Materi : Kinematika Gerak Lurus
◾ Sub materi : GLBB
◾ Mapel : Fisika
Diketahui :
Vt = 20 m/s
a = 20 m/s²
Ditanya :
s = ?
a) Vo = 0
b) Vo = 10 m/s
Penyelesaian :
*Cari jarak tempuh jika diam
Vt² = Vo² + 2as
20² = 0² + 2(2)s
400 = 4s
s = 100 meter
*Cari jarak tempuh jika Vo = 10 m/s
Vt² = Vo² + 2as
20² = 10² + 2(2)s
400 = 100 + 4s
300 = 4s
s = 75 meter
Jadi, jarak tempuh untuk Vo diam Dan Vo 10 m/s adalah 100 meter dan 75meter
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-vin