A missile is launched with a speed of 75 ms-1 at an angle of 30° above the surface of a w

Source: JAMB · 2023

A missile is launched with a speed of 75 ms-1 at an angle of 30° above the surface of a warship. Find the horizontal range achieved by the missile. Ignore the effects of air resistance. [Take g = 10 ms-1]

A missile is launched with a speed of 75 ms-1 at an angle of 30° above the surface of a warship. Find the horizontal range achieved by the missile. Ignore the effects of air resistance. [Take g = 10 ms-1]

  1. 487 m ✓
  2. 386 m
  3. 271 m
  4. 195 m
Explanation

Oscilloscope displays voltage against time. Horizontal axis is time, vertical axis is voltage. It shows waveform shape, amplitude, frequency, and DC offset.

Controls: timebase (time per division), Y-gain (volts per division), trigger (stabilizes display). DC shows baseline shift; AC blocks DC component.

Uses: measuring frequency (count cycles, use timebase), amplitude (count divisions, use Y-gain), comparing signals, troubleshooting electronic circuits.

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