KinematicsHard
Question
A particle moves in XY plane such that its position, velocity and acceleration are given by 
Which of the following condition is correct if the particle is speeding down
Which of the following condition is correct if the particle is speeding down
Options
A.xvx + yvy < 0
B.xvx + yvy > 0
C.axvx + ayvy < 0
D.axvx + ayvy > 0
Solution
For speeding down 
< 0 ⇒ axvx + ayvy < 0
< 0 ⇒ axvx + ayvy < 0Create a free account to view solution
View Solution FreeMore Kinematics Questions
The displacement of a particle moving in a straight line depends on time (t) as : x = αt3 + βt2 + γt + &#...From a tower of height H, a particle is thrown vertically upwards with a speed u. The time taken by the particle, to hit...A disc is performing pure rolling on a smooth stationary surface with constant angular velocity as shown in figure....A particle moves in east direction with 15 m/sec. for 2 sec. then moves northward with 5 m/sec. for 8 sec. then average ...A bar magnet M is allowed to fall towards a fixed conducting ring C. If g is the acceleration due to gravity, v is the v...