Question

10. A cat walking at 0.25 m/s sees a mouse and accelerates uniformly at 0.40 m/s
for 3.0 s. What is the cat's displacement during this time?

Answer 1

Answer:

The displcament is 2.55m

Explanation:

step one:

Given that the intial speed is

u= 0.25 m/s

and acceleration is

a= 0.40 m/s^2

and time t= 3seconds

step two:

Applying the formula

s=ut+1/2at^2

s= 0.25*3+ 1/2*0.4*3^3

s= 0.75+3.6/2

s= 0.75+1.8

s=2.55 m

The displacement is 2.55m