At an instant when a soccer ball is in contact with the foot of a player kicking it, the horizontal or x component of the ball's acceleration is 835 m/s2 and the vertical or y component of its acceleration is 1180 m/s2. The ball's mass is 0.44 kg. What is the magnitude of the net force acting on the soccer ball at this instant

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?

The base of a 50-meter tower is at the origin; the base of a 50-meter tree is at (0, 50, 0). the ground is flat and the z-axis points upward. the following parametric equations describe the motion of six projectiles each launched at time t = 0 in seconds. (i) r (t) = (50 + t2)k (ii) r (t) = 2t2 j + 2t2k (iii) r (t) = 50 i + 50 j + (50 − t2)k (iv) r (t) = 2t j + (50 − t2)k (v) r (t) = (50 − 2t) i + 2t j + (50 − t)k (vi) r (t) = t i + t j + tk (a) which projectile is launched from the top of the tower and goes downward? at time t = , the projectile hits the ground at point (x, y, z) = . (b) which projectile hits the top of the tree?