Choose the correct answer in the followings:

08/09/2023 WNA24 121 Views 0 Comments

Choose the correct answer in the followings:

1)For an object moving along a straight line without changing its direction the

(a) distance travelled > displacement

(b) distance travelled < displacement

(c) distance travelled = displacement

(d) distance is not zero but displacement is zero.

Ans: – Option (c)distance travelled = displacement

2)In a circular motion the distance travelled is

(a) always > displacement

(b) always < displacements

(c) always = displacement

(d) zero when displacement is zero.

Ans: – Option (a) always>displacement.

3)Two persons start from position A and reach to position B by two different paths ACB and AB respectively as shown in Fig. 9.10.

(a) Their distances travelled are same

(b) Their displacement is same

(c) The displacement of I > the displacement of II

(d) The distance travelled by I < distance travelled by II.

Ans: – Option (b)Their displacement is same.

4) In respect of the top point of the bicycle wheel of radius R moving along a

straight road, which of the following holds good during half of the wheel rotation.

(a) distance = displacement

(b) distance < displacement

(c) displacement = 2R

(d) displacement = πR.

Ans: – Option (a) distance= displacement.

5)An object thrown vertically upward to the height of 20 m comes to the handsof the thrower in 10 second. The displacement of the object is

(a) 20 m (b) 40 m (c) Zero (d) 60 m.

Ans: – Option (c) Zero.

6) Draw a distance-displacement graph for an object in uniform circular motion on a track of radius 14 m.

Ans: –