A player hits a tennis ball into the air with a velocity of 10 m/s at an angle of 60° to the horizontal. i) What was the initial horizontal velocity of the ball? ii) What was the initial vertical velocity of the ball? (g = 9.8 ml s) %3D

If the stone had been thrown from the clifftop with the same initial speed and the same angle, but above the horizontal, then compare their impact velocities.  a)The impact velocity when throwing a stone above horizontal will be more than the case when throwing a stone below horizontal. b The impact velocities of the two situations will be the same.  c More information is needed to conclude the relative strength of impact velocities. d).The impact velocity when throwing a stone above horizontal will be less than the case when throwing a stone below horizontal.  which option is correct

Recall that the Range equation gives the horizontal distance a projectile can be launched. Suppose there is a slight breeze so that the range equation is modified in the following way: R(0) : = sin(20) – 0.900 R Part A Use Calculus to determine the angle (in degrees) at which the projectile will reach its maximum range. ? Omaz

A fighter plane moving 211.0 m/s horizontally fires a projectile with speed 47 m/s in a forward direction 30.0° below the horizontal. What is the speed of the projectile with respect to a stationary observer on the ground?       a)  240 m/s   b)  283 m/s   c)  253 m/s   d)  278 m/s

3. A baseball player throws a 145g ball toward home-plate from the out-field. The throw was made at 30.0m/s, 30.0° above horizontal [South]. If the baseball player releases the ball 2.45m above the ground; a. Determine the velocity (speed and direction) at the moment the ball strikes the 'turf (ground). b. Determine the time at which the ball possessed a minimal amount of kinetic c. Determine minimum level of kinetic energy for the ball throughout its flight. | energy.

5. A projectile is launched with a velocity of 230 m/s at an angle of 49 degrees (relative to the ground). Determine the following: a. Vx = Vy=_ b. What is the maximum height of the projectile? c. What is the range of the projectile? d. Where is the projectile 5.0 s after it is launched? e. If there was a 75 m high building that is 1400 m away, would the projectile be able to clear this building? Show why or why not.

Dynamics Help!   If a baseball player throws a ball a horizontal distance of 100 m in 4 seconds at 45° latitude, by how much is it deflected laterally if he throws toward the east? a) Starting from the appropriate component either du/dt, dv/dt, or dw/dt find an expression for v (no numbers just the variables) b) Find an expression for y (again no numbers, find the equation c) Calculate the actual meridional deflection using the appropriate numbers given in the problem and explain or describe in words what this number means (specific direction)