Question

find the value of x ,y and z ​

Answer 1

Answer:

The correct answers are x=11,y=15,z=106.

Explanation:

From the given condition, we get

y+9=24 →y=15

2x+25=3x+14→x=11

3y+5+24+z=180

→z=106

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Answer 2

Explanation:

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11th

Physics

Systems of Particles and Rotational Motion

Motion of Centre of Mass and Problems on it

A bomb of mass m = 1 kg thr...

PHYSICS

A bomb of mass m=1kg thrown vertically upwards with a speed u=100 m/s explodes into two parts after t=5s. A fragment of mass m

1

=400g moves downwards with a speed v

1

=25m/s, then speed v

2

and direction of another mass m

2

will be?

HARD

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ANSWER

Let mass of bomb be m

when it goes upwards

Initial velocity

u=100m/s

t=5sec

We know

v=u+gt

v=100+10∗5

v=150m/sec

Thus final velocity of bomb will be 150m/s

Also we are given that one fragment of 600 gm will fall with velocity of 50m/s

Another fragment of 400gm will fall with velocity of 150−50=100m/s