Atumbleweed is moving with a velocity of 5.4 m/s westward. a sudden gust of wind blows for 1.5 seconds and reduces its velocity to 1.8 m/s. what is the acceleration of the tumbleweed during this time?
a. -1.8 m/s² b. -2.0 m/s² c. -2.4 m/s² d. -2.7 m/s²

specific latent heat of fusion, lf, of a substance is defined as the amount of heat required to change a unit mass of the substance from solid to liquid state, without any change in the temperature.

explanation:

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min