Category Archives:
Essay Writing Help

A stone is dropped into a river from a bridge A stone is dropped into a river from a bridge 43.9 m above the water. Another stone is thrown vertically down 1.00 s after the first is dropped. The stones strike the water at the same time. (a) What is the initial speed of the […]

Account profit planning/budget question? Quillin company had the following budgeted information for october: 1. october 1 cash balance $3500 2. expected sales 2,500 units at $25 each (half in cash, remainder on credit due in november) 3. inventory purchases 3,000 units at $14 each (all in cash) 4. rent $1,450 5. payroll $1,000 6. utilities […]

A motorist drives along a straight road A motorist drives along a straight road at a constant speed of 15.0 m/s. Just as she passes a parked motorcycle police officer, the officer starts to accelerate at 2.00 m/s2 to overtake her. Assuming the officer maintains this acceleration, (a) Determine the time it takes the police […]

A speedboat moving at 30.0 m/s approaches A speedboat moving at 30.0 m/s approaches a no-wake buoy marker 100m ahead. The pilot slows the boat with a constant acceleration of – 3.50 m/s2 by reducing the throttle. (a) How long does it take the boat to reach the buoy? (b) What is the velocity of […]

A rocket carrying a satellite is accelerating A rocket carrying a satellite is accelerating straight up from the earth’s surface. At 1.15 s after liftoff, the rocket clears the top of its launch platform, 63 m above the ground. After an additional 4.75 s, it is 1.00 km above the ground. Calculate the magnitude of […]

A shuffleboard disk is accelerated at a constant rate from A shuffleboard disk is accelerated at a constant rate from rest to a speed of 6.0 m/s over a 1.8 m distance by a player using a cue. At this point the disk loses contact with the cue and slows at a constant rate of […]

A rocket is fired vertically with an upward acceleration of A rocket is fired vertically with an upward acceleration of 20 m/s2. After 25 s, the engine shuts off and the rocket continues as a free particle until it reaches the ground. Calculate (a) The highest point the rocket reaches, (b) The total time the […]

A Simple Reaction-Time Test A meter A Simple Reaction-Time Test A meter stick is held vertically above your hand, with the lower end between your thumb and first finger. On seeing the meter stick released, you grab it with these two fingers. You can calculate your reaction time from the distance the meter stick falls, […]

A particle moves according to the equation x A particle moves according to the equation x = 10 t 2 where x is in meters and t is in seconds (a) Find the average velocity for the time interval from 2.00 to 3.00 s. (b) Find the average velocity for the time interval from 2.00 […]

A Multi-stage Rocket In the first stage A Multi-stage Rocket In the first stage of a two-stage rocket, the rocket is fired from the launch pad starting from rest but with a constant acceleration of 3.50 m/s2 upward. At 25.0 s after launch, the rocket fires the second stage, which suddenly boosts its speed tn […]