A760 n man stands in the middle of a frozen pond of radius 6.0 m. he is unable to get to the other side because of a lack of friction between his shoes and the ice. to overcome this difficulty, he throws his 1.2 kg physics textbook horizontally toward the north shore, at a speed of 6.0 m/s. how long does it take him to reach the south shore?

Explanation:

Given

weight of man

mass of man

radius of pond

mass of textbook

speed of text book

Let speed at which man recoils is

Initially momentum is zero as man is at rest

Conserving momentum

i.e. 0.1 m/s towards south

time taken to reach other side in absence of friction is given by

step-by-step explanation:

we are given

we have to simplify it

firstly, we will factor it

now, we can cancel like terms

now, we can combine it

so, we get