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A ball falls on an inclined plane as shown in Fig. The ball is dropped from height . Coefficient of restitution for collision is  and the surface is frictionless. If are heights of  projectiles and are their corresponding time of flights, then

  1.  form a geometric progression of common ratio
  2. , …,   form a geometric progression of common ratio
  3.  form a geometric progression of  common ratio

Evaluate the above statements and choose the correct option from the following

a)

Statements i, ii are true and iii,iv are false

 

b)

Statements i, ii, are false and iii,iv are true 

 

c)

All statements are true

 

d)

All statements are false



Question ID - 100350 | SaraNextGen Top Answer

A ball falls on an inclined plane as shown in Fig. The ball is dropped from height . Coefficient of restitution for collision is  and the surface is frictionless. If are heights of  projectiles and are their corresponding time of flights, then

  1.  form a geometric progression of common ratio
  2. , …,   form a geometric progression of common ratio
  3.  form a geometric progression of  common ratio

Evaluate the above statements and choose the correct option from the following

a)

Statements i, ii are true and iii,iv are false

 

b)

Statements i, ii, are false and iii,iv are true 

 

c)

All statements are true

 

d)

All statements are false

1 Answer
127 votes
Answer Key / Explanation : (a) -

(a)

After the first collision, velocity perpendicular to the inclined plane becomes  Time of flight,

127 votes


127