A 0.25 kg baseball is travelling horizontally to the right at 40 m/s when it was hit by a bat and it bounced off at 60 m/s 60o above the horizontal to the left. How much impulse was applied to the ball by the baseball bat?

A 10kg boy jumps on the ground from a 1.3m high table. The magnitude of impulse (in N-sec) that he receives on hitting the ground is....... N-S (take g = 9.8/s²) (Round of to one decimal places)

PROBLEM 3.6 7. A ball is shot at an average speed of 250 m/s at an angle of 25* with the horizontal. What would be the velocity of the ball after 6 sec.?

A ball is tossed from an upper story window of a building. The ball is given an initial velocity of (8 m/s) at an angle of (20°) below the horizontal. How long does it take the ball to reach a point (10 m) below the level of launching? 320°

3. A small projectile is fired vertically downward into a fluid medium with an initial velocity of 60m/sec. Due to the drag resistance of the fluid the projectile experiences a deceleration of a = 0.4v³m/s?, where v is in m/s. Determine the projectile's velocity and position 4 seconds after it is fired.

In a volleyball game, A player serves the ball at an initial velocity of 13 m/s at angle 20" as shown. Determine a) if the ball will clear the top of the net b) how far from the net the ball will land? 21 m

In a railroad classification yard, a 76-Mg freight car moving at 1.1 m /s at A encounters a retarder section of track at B which exerts a retarding force of 36 kN on the car in the direction opposite to motion. Over what distance x should the retarder be activated in order to limit the speed of the car to 3.2 m /s at C? 196 m 3.2 m B (Vertical scale exaggerated) C Part 1 Calculate the kinetic energies at A and C; Answers: TA = i kg m?/s? Tc = i kg m?/s?

A ball A thrown vertically upward from the top of a 30-m-high building with an initial velocity of 5 m/ At the same instant another ball B is thrown upward from the ground with an initial velocity of 20 m/s Determine the height from the ground and the time at whsch they pass 6.

Quiz 1 Q1: A reducing elbow is used to deflect water flow at a rate of 25 kg/s in a horizontal pipe upward by an angle of 45° from the flow direction while accelerating it. The elbow discharges water into the atmosphere. The diameter of pipe is 150 mm at the inlet and 30 mm at the exit. The elevation difference between the centers of the exit and the inlet is 40 cm. The volume of the water in bend is 0.053 m³. Determine the resultant force exerted on bend. 30 mm 150 mm 40 cm 45° Water Q2: Water is siphoned from a large tank and discharges into the atmosphere through a 2-in.- diameter tube as shown in Fig. The end of the tube is 3 ft below the tank bottom, and viscous effects are negligible. (a) Determine the volume flowrate from the tank. (b) Determine the maximum height, H, over which the water can be siphoned without cavitation occurring. Atmospheric pressure is 14.7 psia, and the water vapor pressure is 0.26 psia H 2-in. diameter 10 ft 4 ft D

A stone is dropped from the roof of a high building. A second stone is dropped 1.3 secs later. How far apart are the stones hen the second one has reached a speed of 12 m/s? 23.88 m 31.22 m 31.88 m O 23.22 m