A child lying on her back experiences t1 = N tension in the muscles on both sides of her neck when she raises her head to look past her toes. Later, sliding feet first down a water slide at terminal speed v = m/s and riding high on the outside wall of a horizontal curve of radius r = m, she raises her head again to look forward past her toes. Find the tension in the muscles on both sides of her neck while she is sliding
a1 =