Question

10. [Essay] A 5g pellet moving with a speed of
100 m/s hits a muddy wall and takes 0.05 s to
stop in the wall. Find (a) the acceleration of the
pellet in the wall (b) the force exerted by the
wall on the pellet (c) the force exerted by the
pellet on the wall (d) the distance covered by
the pellet in the wall. (2pt) *sign​

Answer 1

Answer:

A bullet weighing 10 g is fired with a velocity of 800ms

−1

. After passing through a mud wall 1 m thick, its velocity decreases to 100ms

−1

. Find the average resistance offered by the mud wall.

Medium

Answer

v

2

−u

2

=2as

(100)

2

−(800)

2

=2a×1;S=1m

a=

2

−640000+10000

a=

m

F

m

F

=−

2

630000

F=

2

630000×10×10

−3

=

2

6300

=−3150N

Resistance Offered=3150N.

Explanation:

5g nahi mela lrki 10 g mil gaya