Physics Kinematics Level: Misc Level
An airplane is accelerated uniformly from rest to 165.0 m/sec in 5.3 sec. What is the acceleration of the plane?
Physics Kinematics Level: Misc Level
Two cars are driving toward each other on a straight road.The BMW is traveling at 100 km/h North and the VW is traveling at 42 km/h South. At a certain , the distance between the cars is 10 km.Approximately how long will it take from that instant for the two cars to meet? [ hint: consider a reference frame in which one of the cars is at rest].
Physics Kinematics Level: Misc Level
A particle experience a constant acceleration that is south at 2.5 m/s squared.At t=0, its velocity is 40 m/s East.What is its velocity at t =8 s?
Physics Kinematics Level: Misc Level
A beanbag is thrown horizontally from a door room window a height" h " above the ground.It hits the ground a horizontal distance "h"( the same distance h) from the dorm directly below the window from which it was thrown. Negleting air resistance, find the direction of the beanbag,s velocity just before impact?
Physics Kinematics Level: Misc Level
A marble is rolled sothat it is projected horizontally of the top landing of a staircase. The initial speed of the marble is 3m/s. Each step is 0.18 m high and 0.30 m wide. Which step does the marble strike first?
Physics Kinematics Level: Misc Level
A catapult fires a 700 kg rock with an initial velocity of 100 m/s at a 50 degree angle to the ground. what is the magnitude of the horizontal impulse the catapult receives from the rock?
Physics Kinematics Level: Misc Level
Both car A and Car B leave school when a stopwatch reads zero. Car A travels at a constant 75 km/h, and car B travels at a constant 85 km/h
a. Draw a position- time graph showing the motion of both cars. How far are the two cars from school when the stopwatch reads 2.0h? Calculate the distances and show them on your graph.
b. Both cars passed a gas station 120 km from the school. when did each car pass the gas station ? Calculate the times and show them on your graph.
Physics Kinematics Level: Misc Level
A cyclist maintains a constant velocity of +5.0 m/s. At time t=0.0 s, the cyclist is +250 m from point A.
a. plot a position -time graph of the cyclists location from point A at 10.0 -s intervals for 60.0 s.
b. what is the cyclist s position from point A at 60.0 s?
c. what is the displacement from the starting positin at 60.0 s?
Physics Kinematics Level: Misc Level
A car is moving down a street at 55 km/h. A child suddenly runs into the street. If it takes the driver 0.75 s to react and apply the brakes, how meters will the car have moved befor it begins to slow down?
Physics Kinematics Level: Misc Level
A cheetah can run at approximately 100 km/hr and a gazelle at 80.0 km/hr. If the Gazelle has a 70.0- m head start, how long in seconds until the cheetah catches the gazelle?
Physics Kinematics Level: Misc Level
A parachutist jumps out of an airplane and accelerates with gravity to a max imum speed of 58.8 m/s in 6.00 seconds. She then pulls the rip cord and, after a 4.00 second speed constant deceleration , descends at 10.0 seconds, reaching the ground, From what height did she jump?
Physics Kinematics Level: Misc Level
A plane, flying horizontally, releases a bomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb fragments, just after the explosion
(a) is zero
(b) moves along a parabolic path
(c) moves vertically
(d) moves horizontally
Physics Kinematics Level: Misc Level
A 60 kg woman pushes a 20 kg suitcase on wheels a distance of 10 m by exerting a force of 2.0 N in the direction of motion, starting from (a) How much work does she do? (b) If there were no friction acting on the suitcase, what would its final velocity be at the end of the 10 m distance?
Physics Kinematics Level: Misc Level
A skier, of mass 60 kg, pushes off the top of a hill with an initial speed of 4.0 m/s.How fast will she be moving after dropping 10 m in elevation?
Physics Kinematics Level: Misc Level
An arrow is shot vertically upward. Three seconds later, it is at a height of 35 m.
a. What was the initial speed of the arrow?
b. How long is the arrow in flight from launch to the initial height? ( Assume the arrow falls vertically downward.)
