Question

8. A ball of 2 kg drops vertically onto
the floor with a velocity of 20 m/s. It
rebounds with an initial velocity of
10 m/s, impulse acting on the ball
during contact will be
(a) 20 (b) 40 (c) 60 (d) 30

9. Initial velocity of a body moving
with uniform acceleration of 10 m/s2
is 10m/s. Distance travelled by the
body in 10 s is
(a) 500 m
(b) 1000 m
(c) 1100 m
(dy 600 m​

Answer 1

Answer:

1000

Explanation:

distanamabvdvdd s493 s

Answer 2

s= ut +1/2 at ²

= 10×10 + 1/2 ×10 ×(10)²

= 10×10+ 1/2×1000

= 10×10+ 500

= 600