Essay problem a body placed on rough horizontal level and two horizontal coplanar forces affected on it \( 6,10 \mathrm{~N} \) angle between them \( 60^{\circ} \) then the body's about to move if friction coefficient \( \frac{2}{3} \) then body weight \( =\ldots, \mathrm{N} \)

f Steve throws the football 50 meters in 3 seconds, what is the average speed of the football? (nearest hundredth) If it takes Ashley 3 seconds to run from the batters box to first base at an average spe of 6.5 meters per second, what is the distance she covers in that time? \( \begin{array}{l}\text { Bart ran } 5000 \text { meters from the cops and an average speed of } 8 \text { meters/second before } \\ \text { he got caught. How long did he run? }\end{array} \)

What will happen to the speed of a ball after it is thrown upward into the air? \( \begin{array}{ll}\text { A. Increnses } & \text { C. increases and then d }\end{array} \)

Una pesante maniglia in ottone ha una massa di \( 3,40 \mathrm{~kg} \). Quale volume in \( \mathrm{cm}^{3} \) occupa la maniglia? La densità dell'ottone è \( 8,40 \cdot 10^{3} \mathrm{~kg} / \mathrm{m}^{3} \).

22.Sebuah benda bermuatan \( \mathrm{q}=9 \times 10^{-5} \mathrm{C} \) dan mempunyai gaya elektrolisis \( 7,2 \mathrm{~N} \). maka kuat medan pada tempat benda tersebut berada adalah.. A. \( 1,2 \times 10^{-6} \mathrm{~N} / \mathrm{C} \) B. \( 4,2 \times 10^{-6} \mathrm{~N} / \mathrm{C} \) C. \( 5,0 \times 10^{-6} \mathrm{~N} / \mathrm{C} \) D. \( 8,0 \times 10^{-6} \mathrm{~N} / \mathrm{C} \)

1. A 0.500 g (small) mass on the end of a 1.70 m long string is pulled aside \( 20^{\circ} \) from the vertical and shoved downward (toward the bottom of its motion) with a speed of \( 2.4 \mathrm{~m} / \mathrm{s} \). (a) Is the angle on the other side greater than, less than, or the same as the angle on the initial side \( \left(20^{\circ}\right) \) ? Explain in terms of energy. (5pts) (b) Calculate the angle it goes to on the other side, neglecting air resistance. ( 10 pts )