JEE 2023 | Motion In a Straight Line | Saral Rekha Me Gati | Relative Speed | IIT JEE Physics

11 AM JEE Mains 2020 - Maths | Straight Lines - 30 Days Score Booster Course

A smooth sphere of radius R is moving in a straight line with an acceleration a. A particle is released from top of the sphere from rest. Find the speed of the particle when it is at an angular position theta from the initial position relative to the sphere.

An eaeroplane is to go along straight line from A to B, and back again. The relative speed with respect to wind is V. The wind blows perpendicular to line AB with speed v. The distance between A and B is l. The total time for the round trip is:

A particle is moving in a straight line along the positive x -axis such that its speed is inversely proportional to the distance from origin [vprop1/ximpliesv=k/x where k is the proportionally constant]. The graph of motion of the particle for 1//v versus x (distance from origin) is shown in the figure.

Understanding Rest And Motion|Frame Of Reference|Introduction To Mechanics|Kinematics|Motion In A Straight Line|Practice Exercise|Position Vector And Displacement Vector|Distance And Displacement|Average Speed And Average Velocity|Instantaneous Velocity And Instantaneous Speed|Average And Instantaneous Acceleration|Practice Exercise|Summary

A body moving along a straight line travels one third of the total distance with a speed of 3.0 m s^(-1) . The remaining distance is covered with a speed of 4.0 m s^(-1) for half the time and 5.0 m s^(-1) for the other half of the time. The average speed during the motion is

On a frictionless horizontal surface , assumed to be the x-y plane , a small trolley A is moving along a straight line parallel to the y-axis ( see figure) with a constant velocity of (sqrt(3)-1) m//s . At a particular instant , when the line OA makes an angle of 45(@) with the x - axis , a ball is thrown along the surface from the origin O . Its velocity makes an angle phi with the x -axis and it hits the trolley . (a) The motion of the ball is observed from the frame of the trolley . Calculate the angle theta made by the velocity vector of the ball with the x-axis in this frame . (b) Find the speed of the ball with respect to the surface , if phi = (4 theta )//(4) .

JEE Mains 2020 - 30 Days Revision | Straight Line And Pair Of Straight Line-Most Important Questions

Velocity time graph for the motion of a particle along a straight line is as shown in figure. Average speed of the particle for the whole motion is: