Question

A small ball travels with a speed vo over a fixed wedge
as shown in the figure. The minimum value of so that
the particle doesn't hit the inclined plane, will be
H
7
tan
Vo
V20H
Vo
cos
2gH
1 IgH
tan
110​

Answer 1

Answer:

plz mark as brainlist

Explanation:

Elastic collision in 2D Before the impact:-

After the impact:

sin30

o

=

2

1

sinα=

2

1

cosα=

2

3

tanα=

3

1

Component of vel ll

le

to the slope is 8sinα ⇒8×

2

1

=4 ⊥

lar

to slope → v=e×8cosα

4

1

×8×

2

3

⇒

3

Now to n

′

s law of restitution ⊥

lar

to slope applies

Speed after impact

→ combine the two component

(4)

2

+(3)

2

=

16+3

⇒

19

ms

Elastic collision in 2D Before the impact:-

After the impact:

sin30

o

=

2

1

sinα=

2

1

cosα=

2

3

tanα=

3

1

Component of vel ll

le

to the slope is 8sinα ⇒8×

2

1

=4 ⊥

lar

to slope → v=e×8cosα

4

1

×8×

2

3

⇒

3

Now to n

′

s law of restitution ⊥

lar

to slope applies

Speed after impact

→ combine the two component

(4)

2

+(3)

2

=

16+3

⇒

19

ms