Question

Tolong cara kerjanya ya

Answer 1

Pertama kita cari V pada saat 1 s
v(1) = 2.1i + (3.1²+ 5)j
v (1) = 2i + 8j
kedua cari v = 3s
v(3) = 2.3i + (3.3² +5)j
v(3) = 6i + 32j

△v = v2 - v1
△v = (6i + 32j) - (2i + 8j)
△v = 4i + 24j

percepatan rata2 = 4i + 24j /(3-1)
percepatan rata2 = 2i + 12j
|a| = √2² +12²
a = 2√37