Given that `v = 5 + 8t` (In SI units). The final velocity after 5s is
a) 35 ms-1
b) 40 ms-1
c) 45 ms-1
d) 50 ms-1​

The velocity of sound in vacuum is _______ ms^(-1) .

The height and horizontal distances covered by a projectile in a time t are given by y=(4t-5t^(2)) m and x=3t m the velocity of projection is (A) 4ms^(-1) (B) 3ms^(-1) (C) 5ms^(-1) (D) 10ms^(-1)

A stone is dropped into a well of depth 80 m . Splash of sound is heard after 4.25 sec . If g=10ms^(-2) , velocity of sound in air is A) 300 ms^(-1) ; B) 360 ms^(-1) ; C) 320 ms^(-1) ; D) 400 ms^(-1) ;

11. A boy wants to throw a ball from a point A so as to just clear the obstruction at B. The minimum horizontal velocity with which the boy should throw the ball is (A) 23.5 ms^(-1) (B) 47 ms^(-1) (C) 235 ms^(-1) (D) 32.5 ms^(-1)

Find the acceleration of the car, if it changes its velocity from 20 m s^(-1) to 30 ms^(-1) in 5 seconds.

A body is projected horizontally from the top of the tower.It strikes the ground at an angle of 45^(0) after 5 Sec. The velocity of projection is (A) 19.6ms^(-1) (B) 39.2ms^(-1) (C) 49.0ms^(-1) (D) 29.4ms^(-1)

An object is moving with a uniform acceleration. Its velocity after 5 s 25 ms^(-1) and after 8 s is 34 ms^(-1) Find the distance travelled by the object in 10 th second.

Figure shows a pulley over which is string passes and connected to two masses A and B. Pulley moves up with a velocity V_(P) and mass B is also going up at a velocity V_(B) . Find the velocity of mass A if (a) V_(P)=5ms^(-1) and V_(B)=10ms^(-1) (b) V_(P)=5ms^(-1) and V_(B)=-20 ms_(-1) .