2. 1D Motion / Kinematics
Kinematics Equations
2. 1D Motion / Kinematics
Kinematics Equations
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- Multiple Choice
A moving hockey puck encounters a patch of rough ice and slides 90cm before coming to a full stop. Assuming a constant deceleration of 8 m/s2, what was the puck's initial speed?
1824views42rank3comments - Multiple Choice
Certain rifles can fire a bullet with a speed of 970 m/s just as it leaves the muzzle (this speed is called the muzzle velocity). The muzzle is 70.0 cm long and the bullet is accelerated uniformly from rest within it.
For how long (in ms) is the bullet in the muzzle?
1880views34rank8comments - Multiple ChoiceStarting from rest, a car accelerated to in . How far did the car travel as it sped up? Assume constant acceleration.418views
- Multiple Choice
A car accelerates from 5 m/s to 21 m/s at a constant 3.0 m/s2. How far does it travel while accelerating?
792views30rank - Textbook QuestionA speed skater moving to the left across frictionless ice at 8.0 m/s hits a 5.0-m-wide patch of rough ice. She slows steadily, then continues on at 6.0 m/s. What is her acceleration on the rough ice?1299views
- Textbook Questiona. Find an expression for the minimum stopping distance dₛₜₒₚ of a car traveling at speed v₀ if the driver's reaction time is Tᵣₑₐ꜀ₜ and the magnitude of the acceleration during maximum braking is a constant a₆ᵣₐₖₑ.943views
- Textbook QuestionA car starts from rest at a stop sign. It accelerates at 4.0 m/s² for 6.0 s, coasts for 2.0 s, and then slows down at a rate of 3.0 m/s² for the next stop sign. How far apart are the stop signs?1753views
- Textbook QuestionYou're driving down the highway late one night at 20 m/s when a deer steps onto the road 35 m in front of you. Your reaction time before stepping on the brakes is 0.50 s, and the maximum deceleration of your car is 10 m/s². a. How much distance is between you and the deer when you come to a stop?2865views