Question

26. A block is moving on a rough surface. At time t =
0, speed of the block is 20 m/s. Coefficient of
friction (u) between block and surface varies with
time (1) as shown in figure. The magnitude of
velocity of particle after t = 2 second is (g = 10
ms-?)
.
1
2
+(s)
(1) 2.5 m/s
(3) 15.0 m/s
(2) 17.5 m/s
(4) Zero​

Answer 1

Explanation:

89. A block of mass 1kg lies on a horizontal

surface in a truck. The coefficient of

friction between the block and surface is

0.5. If the acceleration of the truck is

oms- the acceleration of the block relative

to ground is

1) 6 m/s2 2) 1.1 m/s?

3) 4.9 m/s2 4) 0 m/s2