A 100-kg halfback makes a turn on the football field. The halfback sweeps out a path that is a portion of a circle with a radius of 2.99-meters. The
halfback makes a quarter of a turn around the circle in 2.1 seconds. Using
the calculations and information from the previous problem determine the
Force net acting upon the halfback. N*

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

d. platinum would have the greatest temperature increase because it has the lowest specific heat.

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