When landing after a spectacular somersault, a 41 kg gymnast decelerates by pushing straight down on the mat. Calculate the force she must exert if her deceleration is 7.00 times the acceleration due to gravity. Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion.

The force the  gymnast  must exert is 2812.6 N.

Explanation:

Given;

mass of the gymnast, m = 41 kg

her deceleration, -a = 7g = 7 x 9.8m/s² = 68.6 m/s²

Apply Newton's second law of motion;

F = ma

where;

F is the magnitude of the force exerted

m is the mass of the gymnast

a is the deceleration

Substitute in the given values of m and a into the force equation;

F = ma

F = 41 x 68.6

F = 2812.6 N

Therefore, the force the  gymnast  must exert is 2812.6 N.

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles