Question

1) A particle shows a value of 146.0 m/s What can it be?
(a) Force of the particle
(b) Velocity of the particle
(c) Acceleration of the particle
(d) Momentum of the particle

2) A particle moving with an initial velocity of 1 5 m/s is subjected to a uniform acceleration of 22.5 m/s². Find the displacement in the next 4 seconds.
(a) 40 m
(b) 0 m
(c) 20 m
(d) 60 m

3) How do the directions of velocity and acceleration act when brakes are applied to a moving cycle?
(a) Opposite to each other
(b) In the same direction
(c) Perpendicular to each other
(d) Parallel to each other

4) A train covers equal distances in equal intervals of time. Which of the following does it NOT exhibit?
(a) Uniform acceleration
(b) Uniform speed
(c) Uniform velocity
(d) None of the above

5) When will a body have zero speed?
(a) When a body has uniform acceleration (b) When a body has non-uniform acceleration
(c) When a body is always under rest
(d) When a body is always under motion

6) A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car.
(a) 6.10 m/s²
(b) 8.10 m/s²
(c) 10.10 m/s²
(d) 12.10 m/s²​

Answer 1

Answer:

1, b

2, check question, I am getting 240

3, a

4, d

5, c

6, b

Explanation:

1, Unit is m/s which is unit of velocity

2,

3, When brakes are applied, the acceleration changes and reverses it's direction

4, X/t= constant => velocity and acceleration are constant

5, zero speed means body at rest

6, use S=ut+0.5*a*t² (u=0, t=5.21, S=110, find a)