To win the game, a place kicker must kick a football from a point 56 m (61.2416 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 27 m/s at an angle of 31.2◦ from the horizontal. The acceleration of gravity is 9.8 m/s^2.
By how much vertical distance does the ballclear the crossbar?
Answer in units of m

When does your body conduct current more readily?

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.

Which of the following are appropriate acceleration units?