Home
Class 11
PHYSICS
A particle has an initial velocity of 3h...

A particle has an initial velocity of `3hat(i) + 4 hat(j)` and an acceleration of `0.4 hat(i) + 0.3 hat(j)`. Its speed after `10s ` is :

Text Solution

Verified by Experts

The correct Answer is:
(b)
Promotional Banner

Topper's Solved these Questions

  • KINEMATICS

    PRADEEP|Exercise 1 Fill in the blanks|10 Videos

  • KINEMATICS

    PRADEEP|Exercise 2 Fill in the blanks|10 Videos

  • KINEMATICS

    PRADEEP|Exercise 3 Multiple choice|11 Videos

  • GRAVIATION

    PRADEEP|Exercise Assertion-Reason Type Questions|19 Videos

  • LAWS OF MOTION

    PRADEEP|Exercise Assertion- Reason Type Questions|17 Videos

Similar Questions

Explore conceptually related problems

A particle has initial velocity (3 hat i+ 4 hat j) and has acceleration (0.1 hat i+ 0.3 hat j) . Its speed after 10 s is.

A particle has initial velocity of (3hat(i)+4hat(j)) m//s and a acceleration of (4hat(i)-3hat(j)) m//s^(2) . Its speed after one second will be equal to :-

A particle has an initial velocity of 4hat(i)+4hat(j) m//s and an acceleration of -0.4 hat(i) m//s^(2) at what time will its speed be 5 m//s?

A particle has an initial velocity (2 hat(i) + 3 hat(j)) and an accelaration (0.3 hat(i) + 0.2 hat(j)) . The magnitude of velocity after 10 s will be

A particle has initial velocity of 2hat(i) and has constant acceleration of 3hat(j) . Find its displacement and velocity after 3s. If initially, the particle is located at 3hat(i) +4hat(j) , find its final location.

A particle has initial velocity vec(v)=3hat(i)+4hat(j) and a constant force vec(F)=4hat(i)-3hat(j) acts on the particle. The path of the particle is :

A particle is moving in x-y plane. At an instant, it has velocity (4 hat (i) + 4 hat(j)) m//s and acceleration (3 hat(i) + 5 hat(j)) m//s^(2) At that instant, the radius of curvature of its path will be :

A projectile is given an initial velocity of ( hat(i) + 2 hat (j) ) m//s , where hat(i) is along the ground and hat (j) is along the vertical . If g = 10 m//s^(2) , the equation of its trajectory is :

A particle moves from a point (-2hat(i) + 5hat(j)) " to" " " (4hat(j) + 3hat(k)) when a force of (4hat(i)+ 3hat(j)) N is force?

Two particles having position vectors vec(r )_(1) = ( 3 hat(i) + 5 hat(j)) meters and vec( r)_(2) = (- 5 hat(i) - 3 hat(j)) metres are moving with velocities vec(v)_(1) = ( 4 hat(i) + 3 hat(j)) m//s and vec(v)_(2) = (alpha hat(i) + 7 hat(j)) m//s . If they collide after 2 s , the value of alpha is

Knowledge Check

  • A particle has initial velocity (3 hat i+ 4 hat j) and has acceleration (0.1 hat i+ 0.3 hat j) . Its speed after 10 s is.

    A
    7 unit
    B
    `7 sqrt(2)` unit
    C
    8.5 unit
    D
    10 unit

  • A particle has initial velocity of (3hat(i)+4hat(j)) m//s and a acceleration of (4hat(i)-3hat(j)) m//s^(2) . Its speed after one second will be equal to :-

    A
    `0`
    B
    `10 m//s`
    C
    `5sqrt(2) m//s`
    D
    `25 m//s`

  • A particle has an initial velocity of 4hat(i)+4hat(j) m//s and an acceleration of -0.4 hat(i) m//s^(2) at what time will its speed be 5 m//s?

    A
    `2.5` sec
    B
    `17.5` sec
    C
    `7 sqrt(2)` sec
    D
    `8.5` sec