Home
Class 11
PHYSICS
At the top of the trajectory of a projec...

At the top of the trajectory of a projectile, the directions of its velocity and acceleration are

A

parallel to each other

B

antiparallel to each other

C

inclined to each other at an angle of `45^(@)`

D

perpendicular to each other

Text Solution

Verified by Experts

The correct Answer is:
D

Velocity is horizontal and acceleration is vertical download. Therefore, the direction of its velocity and acceleration are perpendicular to each other.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MOTION

    DC PANDEY ENGLISH|Exercise Check Point 4.3|10 Videos
  • MOTION

    DC PANDEY ENGLISH|Exercise A. Taking it together|1 Videos
  • MOTION

    DC PANDEY ENGLISH|Exercise Check Point 4.1|15 Videos
  • MEASUREMENT AND ERRORS

    DC PANDEY ENGLISH|Exercise Subjective|19 Videos
  • MOTION IN A PLANE

    DC PANDEY ENGLISH|Exercise (C )Medical entrances gallery|32 Videos

Similar Questions

Explore conceptually related problems

At the top of the trajectory of projectile the

What is the direction of velocity and acceleration in shm ?

STATEMENT-1: A body is projected from the ground with kinetic energy K at an angle of 60° with the horizontal. If air resistance is neglected, its K.E. When it is at the highest point of its trajectory will be K/4 because STATEMENT-2: At the highest point of the trajectory, the direction of velocity and acceleration of the body are perpendicular to each other

At the topmost point of a projectile trajectory, its velocity and acceleration are an angle of

Assertion At highest point of a projectile, dot product of velocity and acceleration is zero. Reason At highest point, velocity and acceleration are mutually perpendicular.

a projectile is fired from the surface of the earth with a velocity of 5ms^(-1) and angle theta with the horizontal. Another projectile fired from another planet with a velocity of 3ms^(-1) at the same angle follows a trajectory which is identical with the trajectory of the projectile fired from the earth.The value of the acceleration due to gravity on the planet is in ms^(-2) is given (g=9.8 ms^(-2))

Determine whether or not the following quantities can be in the same direction for a SHM velocity and acceleration

Projectile motion is a combination of two one-dimensional motion: one in horizontal and other in vertical direction. Motion in 2D means in a plane. Necessary condition for 2D motion is that the velocity vector is coplanar to the acceleration vector. In case of projectile motion, the angle between velocity and acceleration will be 0^@ltthetalt180^@ . During the projectile motion, the horizontal component of velocity ramains unchanged but the vertical component of velocity is time dependent. Now answer the following questions: A particle is projected from the origin in the x-y plane. The acceleration of particle in negative y-direction is alpha . If equation of path of the particle is y = ax - bx^2 , then initial velocity of the particle is

Projectile motion is a combination of two one-dimensional motion: one in horizontal and other in vertical direction. Motion in 2D means in a plane. Necessary condition for 2D motion is that the velocity vector is coplanar to the acceleration vector. In case of projectile motion, the angle between velocity and acceleration will be 0^@ lt theta lt 180^@ . During the projectile motion, the horizontal component of velocity ramains unchanged but the vertical component of velocity is time dependent. Now answer the following questions: An object is projected from origin in x-y plane in which velocity changes according to relation vecv = a hati + bx hatj . Path of particle is

Match the entries of Column I and Column II. COLUMN - I (A) For a particle moving in a circle (B) For a particle moving in a straight line (C) For a particle undergoing projectile motion with the angle of projection alpha:0 lt alpha lt pi/2 (D) For a particle moving in space COLUMN - II (P) The acceleration may be perpendicular to its velocity. (Q) The acceleration may be in the direction of velocity (R) The acceleration may be at some angle theta(0 lt theta lt pi/2) with the velocity. (S) The acceleration may be opposite to its velocity.