Question

A 500g block moves on a rough surface (with uk = 0.5).
How far the block will move before coming to rest if the initial velocity was
10 m/sec.
A. 500 cm
B. 5 m
C. 10 m
D. 250 cm
w
O OPTION A
O OPTION B
O
OPTION C
O OPTION D​

Answer 1

Answer:

Option B

Explanation:

friction force = friction constant × mass × gravitation acceleration

so

F =0.5 × 0.5 × 10

F = 2.5 N

since

F= ma or F= mx/t square

x = displacement

t= time

put the values

time we will take as unity

2.5= 0.5× X/ 1 square

x = 5 m