[a] the particle will cover a total distance u/α

[b] the particle will come to rest after 1/α

[c] the particle will continue to move for a very long time

[d] the velocity of the particle will become u/2 after time 1/α

Q.2 A particle moves along the xaxis as x = u(t-1)2 + a(t-3)3

[a] initial velocity of the particle is u

[b] the acceleration of the particle is a

[c] the acceleration of the particle is 2a

[d] the particle is at the origin at time t=3 seconds

Q.3 A particle is projected vertically upwards

[a] the speed decreases uniformly with distance

[b] the speed decreases uniformly with time

[c] the KE decrease uniformly with time

[d] KE decreases uniformly with distance

Q.4 If an observer moves at constant speed along the line joining two stationary objects> he will the two objects

[a] have the same velocity

[b] have the same speed

[c] move in opposite directions

[d] move in the same direction.

Q.5 A particle is moving with uniform acceleration along a straight line AB. Its speed at A and B are 2m/s and 14m/s respectively. Then

[a] its speed at the midpoint is 10m/s

[b] its speed at point P such that AP:PB is 1:5 is 4m/s

[c] the time to go from A to mid point of AB is double to move from mid point to B

[d] none of the above.

Q.6 A body starting from rest is moving with uniform acceleration of 5m/s2 for time 10s, and after that with uniform acceleration of 10m/s2 for 15s, then

[a] average acceleration of the body is 7.5m/s2

[b] the average acceleration is 8m/s2

[c] total distance covered is 1875m

[d] total distance covered is 2125m

Q.7 A particle moves first 10m in 2s and 20m in the next 3s and 30m in next