![]() ![]() Contoh Soal Pilihan Ganda Fisika Kelas X Semester 1.lks biologi kelas 10 semester 2,kunci jawaban ips kelas 8 buku intan bab 1,kunci jawaban biologi kelas 10 semester 1 intan pariwara,kunci jawaban buku gemar matematika kelas 6 hal 56,kunci. EVALUATION I QUANTITIES, UNITS AND MEASUREMENTS • Write the scientific notation of 0,0000231 milimetres on metres unit. • Write the scientific notation of 315 gygabyte on byte unit. • A motorcycle moves at velocity of 70 kilometres/hour. Express the velocity in feet/second. Note: 1 feet = 0,3048 m. • Determine the dimension of pressure P if P =, Force = mass x acceleration, acceleration a =, and velocity v = • A vector of velocity ( v) forms an angle of 60 ° with positif x axis and the magnitude is 40 m/s. Determine the magnitude of vector components ( v xand v y). Two vectors of 6 units in magnitude and 8 units in magnitude make an angle of 90 o. The resultant force of these vectors is... 24 units Result: F R = (F x 2 + F y 2) 1/2 = (6 2 + 8 2) 1/2 = (36 + 64) 1/2 = (100) 1/2 = 10 N 2. The magnitude of vector A is 3 units and vector B is 4 units. Dimensi Fisika Kelas 10If the addition of vectors A and B ( A + B) is 5 units, the angle made by these two vectors is... 90 o Result: R = (A 2 + B 2 + 2 A.B cos α) 1/2 5 = (3 2 + 4 2 + 2.3.4 cos α) 1/2 25 = (3 2 + 4 2 + 2.3.4 cos α) 25 = (9 + 16 + 24 cos α) 25 = 25 + 24 cos α 25 - 25 = 24 cos α 0 = 24 cos α cos α = 0 α = arc cos -1 0 α = 90 o 3. One vector of 10 units in magnitude directed to the right and another of 5 units in magnitude is directed to the left act on an object. To maintain the object at rest, we need an additional vector of...
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