Which of these questions can be answered through science?
2 answers:
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Answer: 25.7m/s
Explanation: the cars have equal masses so we only consider their velocities,
The cars traveled together at 65° north of east this is with a velocity equal to the resultant velocity,
Using the force diagram as shown below;
Tan 65° = Vn/Ve
Ve is velocity of the car traveling east
Vn is velocity of car traveling north
Tan 65° = V2/12
2.144 = V2/12
V2 = 12 * 2.144
V2 = 25.7 m/s
Answer:
3 × 10⁴
Explanation:
We are given two numbers, and
We have to divide n₁ by n₂. We know that,
Here, n = -5 and m = -9
So on dividing we get :
Hence, on dividing n₁ by n₂ obtained number is 3 × 10⁴.