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Questions in physics

[Answered] For a freely falling object dropped from rest: - What is the acceleration at the end of the fifth second of fall? - What is the acceleration at the end of the sixth second of fall? - What is the acceleration at the end of any elapsed time \( t \)?

[Answered] As an object is undergoing free-fall motion, as it falls, does the object's: A. Speed increase B. Acceleration increase C. Both of these D. None of these

[Answered] How far will a freely falling object fall from rest in six seconds?

[Answered] How do I find the displacement of an object using a velocity vs. time graph? I also need to draw position and acceleration graphs. How do I ensure they look accurate based on the velocity graph?

[Answered] Given: \[ P = 25 \, \text{watts} \] \[ W = 5000 \, \text{joules} \] Find the time \((t)\).

[Answered] Kecepatan sebuah benda dinyatakan dengan persamaan \(v_x = 8t + 2\) dan \(v_y = 12 + 2t\). Jika posisi awal partikel adalah (2, 5), maka posisi benda pada saat \(t = 4\) s adalah?

[Answered] You have already traveled east in your car 100 km in 1 hour and then south 100 km in 2 hours. To get back home, you then drive west 100 km for 3 hours and then go north 100 km in 4 hours. What would you say your average velocity for the total trip was? A. 20 km/hr B. 40 km/hr C. 60 km/hr D. 100 km/hr E. None of the above

[Answered] You throw a ball downward from a window at a speed of 2.0 m/s. How far has it fallen in 3 seconds?

[Answered] A stone falls freely from rest. How far does it fall in the first 10 seconds?

[Answered] What is the name for the change in a star's spectrum when it moves away from the Earth?