A particle has an initial velocity of (3 i +4 j ) and acceleration [0.4 i +0.3 j ] . Its…
Physics · NEET · NTA Exams — Kinematics
A particle has an initial velocity of \((3 \hat{i}+4 \hat{j})\) and acceleration \([0.4 \hat{i}+0.3 \hat{j}]\). Its speed after 10 s is
- 7 unit
- \(7 \sqrt{2}\) unit
- 8.5 unit
- 10 unit
Answer
(B) 7 2 unit
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- A small block slides down an inclined plane starting from the rest. Friction is absent. If 5_ n is the…
- The displacement of a particle varies with time (t) as 5=a t^ 2 -b t^ 3 . At what time acceleration of the…
- Two stones of masses m and 2m are whirled in horizontal circles, the heavier one in radius r 2 and the…
- Two cars P and Q start from a point at the same time in a straight line and their positions are represented…
- A ball is travelling with uniform translatory motion. This means that
- The position of a particle x (in metre) at a time t second is given by the relation r = [3 t i -t^ 2 j +4 k ]…
- A body, thrown upwards with some velocity reaches the maximum height of 50 m. Another body with double the…
- A ball is dropped from a bridge 122.5 m above a river. After the ball has been falling for two seconds, a…