A baseball is dropped off a cliff and it accelerates to the ground at a rate of -9.8 m/s^2. Meanwhile a cannonball is launched horizontally from cannon with a horizontal speed of 20 m/s. Fill in the position-time table below. Comparison of motion of falling body and projectile complete the table:
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- Two projectiles are fired, one with velocity voi making an angle and the other with velocity v02 making an angle ✪ (0₁ >ę ). Show that if they are to collide in midair the time interval between the two firings must be 20102 sin(0₁-0₂) g(vol cos@₁ +V02 Cos ₂)YHIMIS COL 3amts 8. If Velocity of boat (w.r.t. water) is 4 m/s, the Velocity of river (w.r.t. shore) is 4 m/s, South and the width of river is 127 m in which direction should the boat head to travel due East? 414415 3,2 n/s What is the resultant velocity of the boat with respect to the shore? How long will it take the boat to cross the river? 4,4 m/s east 3,2 m/s Page 3Question 7 of 16 A student drew the relation between the hegt Ihs and the square of the horzantal range D2 in projectle experiment by dropping the ball each time from the same hieght y. What is the velocity Vo? (The gravity acceleration gis 9.8 m/s)? 0332.4cm/s 145cm/s 0313cm/s 0980cm/s 031.3cm/s B Vo S 4 2 1 0 0 100 300 400 D'(an) 500 600
- V:EE IAr O O MOEO O 40all OMANTEL B/s Two stones A and B are thrown الوقت المتبقی 0:28:42 aneously from the two buildings of height 10 m and 20 m, respectively as shown below. Stone A is thrown with an initial speed of 10v2 m/s at an angle of 45 degrees with horizontal, while stone B is thrown horizontally with speed 10 m/s.lf they hit each other in air at t = 1s, then the distance d between the :buildings is 10m/s 10V2m/s 45° 20m 10m إختر أحد الخيارات m 7.0 a m 20 .b m 15 .c m 3.0 d-20. Two cyclists, Mike and Josh, simultaneously started toward each other from two towns d = 24 km apart. Josh rode at vj = 25 km/h, and Mike %3D at UM = 15 km/h. The moment they start, a fly also starts from Josh towards Mike and after reaching Mike, immediately returns towards Josh. The fly continues back and forth motion between the cyclists till the cyclists meet. Air speed of fly is UF = 30 km/h and the wind blows always towards Mike with a constant velocity u = 10 km/h. Find the total distance s flown by the fly. Sneedometer shows speed and odometer shows distance travelled, both11 5. A fire hose held near the ground shoots water at a speed of 6.8 m/s. At what angle, approximately, should the nozzle point in order for the water to land 4.0 m away? ل ما 4 =1.7 6.8mls 8 4.0m 2 Xf = yot Kixt + ½art ² A) 13° (B) 29° C) 77° D) 57.9⁰ E) none of the above 06.8) (17) + 12 (9.8) (1.2) ²
- A projectile is thrown horizontally at 14.0 m/S. The projectile hits the ground 0,510s later. What is the angle of impact the projectile makes with the horizontal ground?1) A golf ball (mass = 47 grams) rolls with speed of 0.30 m/s toward the edge of a table which is 0.60 m high. %3D a) How many seconds is it in the air? b) How far out from the point directly below the tables edge does the ball hit the floor? The same golf ball is placed back on the table but this time is a sling shot shoots it at angle of 25 degrees with the table (horizontal) with an intial velocity of 1.55 m/s. c) Find the components of the initial velocity. d) What is the maximum height above the table the golf ball will reach?A physics student stands on a cliff overlooking a lake and decides to throw a baseball to her friends in the water below. She throws the baseball with a velocity of 15.5 m/s at an angle of 31.5∘ above the horizontal. When the baseball leaves her hand, it is 11.5 m above the water. How far does the baseball travel horizontally before it hits the water? Neglect any effects of air resistance when calculating the answer.
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