Questions tagged 'Kinematics'
17 questions
a 0.12 kg disk is shot across a frictionless horizontal surface by being compressed against a spring?
In an arcade game, a 0.12 kg disk is shot across a frictionless horizontal surface after being compressed against a spring. The spring has a spring constant of 200 N/m and is compressed 6.0 cm from it...
Physics help! Got an answer, don’t know why it’s wrong?
The sledder shown in the figure starts at the top of a frictionless hill and slides down into a valley. What initial speed, (v_i), does the sledder need in order to just make it over the next hill? Th...
A stone is thrown vertically upward with a speed of 24 m/s?
A stone is thrown vertically upward with an initial speed of 24 m/s. A) What is the speed of the stone when it reaches a height of 13 meters? B) How much time does it take for the stone to reach this...
A sprinkler mounted on the ground sends out a jet of water at a 30-degree angle to the horizontal.
A sprinkler mounted on the ground sends out a jet of water at a 30-degree angle to the horizontal. The water leaves the nozzle at a speed of 12 m/s. How far does the water travel before it hits the gr...
A car starts from rest at a stop sign. It accelerates at 2.0 m/s^2 for 6.0 seconds, coasts for 2.0?
A car starts from rest at a stop sign. It accelerates at a rate of 2.0 m/s² for 6.0 seconds, coasts for 2.0 seconds, and then slows down at a rate of 1.5 m/s² until it reaches the next stop sign. How...
Tarzan swings on a 30.0 m long vine initially inclined at an angle of 37.0º with the vertical. What is his sp?
Tarzan swings on a vine that is 30.0 meters long, initially inclined at an angle of 37.0º with the vertical. There are two scenarios to consider: A. He starts from rest. B. He starts with an initial...
physics help?! Find the box’s speed vf at 2.0s after you first started pushing on it.?
A box with a mass of 3.1 kg slides down a rough vertical wall. The gravitational force acting on the box is 30 N. When the box reaches a speed of 2.5 m/s, you begin pushing on one edge of the box at a...
Jan 10, 2025
A Cessna aircraft has a lift-off speed of 120 km/h.?
A Cessna aircraft has a lift-off speed of 120 km/h. (a) What is the minimum constant acceleration required for the aircraft to become airborne after a takeoff run of 220 meters? (b) How long does it...
(b) Use the average value of v2kin to determine the height h1 through which the ball falls.?
A group of students conducted a "Conservation of Mechanical Energy" experiment similar to the one you performed in the lab. However, instead of maintaining the horizontal portion of the ramp at a cons...
A car starts from X = 11m at t = 0 and moves with the velocity graph shown in figure below. [email protected] 2s,3s,4s?
A car starts from a position of ( x = 11 \, \text{m} ) at ( t = 0 ) and moves according to the velocity graph shown below. GRAPH: [Insert link here] A) What is the object's position at ( t = 2\, \tex...