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QUESTION 1 If the distance is 1.34m and the speed of the object is 6.55m/s, how long will it take the object to travel this distance? Input your answer in meters using 3 significant figures. 10 points Save Answer QUESTION 2 Calculate the height of a cliff if it takes 5.66 s for a rock to hit the ground when it is thrown straight up from the cliff with an initial velocity of 7.98 m/s. Assume air resistance to be negligible. (g = -9.80 m/s2) Input your answer in m using 3 significant figures. 10 points Save Answer QUESTION 3 > ) / 2 t O ( ( X , - > > > + ( Y 2 - > > > > / 2 1 1 2 O ( (X , - X ) + ( Y , - Y ) ) I t ( ( x , - x, ) = + ( Y , - > > > > / 2 + ( ( x - * , + ( Y , - > > > / 2 ) it O ( X , - X ) = + ( Y , - Y > it O ( (X, - X,) = + ( Y , - > > > > /zit O ( (X, - X,)3 + (Y 2 - Y)3 )/sit ( X - X, R + (Y , - Y p + ( x, - x, / + (Y, - v.> > /2it 10 points Save AnswerQUESTION 4 ! The initial position of some object is described by coordinates X, and Y. The next position is described by coordinates X, and Y,. The third final position is described by coordinates X, and Y2. The object moves between positions by straight lines. It takes time t to move from the initial position to the final position. Choose the correct formula to calculate the magnitude of the average velocity for motion from the initial to the final position. O ( ( X , - X ) + ( Y 2 - Y . ) I t O ( X, - X ) 2 + (Y - Y> it O ( ( X , - > > > + ( Y , - Y > > /zit O ( ( X , - > > > + ( Y , - > > > /2 t O ( ( X , - X ) 2 + ( Y , - > > > > / 2 1 1 2 O ( ( X, - X,) + ( Y , - > > > + ( X , - * * + ( Y , - > > > /2 , t O ( (X, - X)3 + ( Y , - Y ) > >/sit O ( ( (x, - X,) = + (Y , - > > > > / 2 + ( ( x , - * 2 + ( Y , - > > > /2 ) itQUESTION 5 The initial position of some object is described by coordinates X., Y., and Z. The final position is described by coordinates X, Y, and Z. It takes time t to move from the initial position to the final position. Choose the correct formula to calculate what was the magnitude of the average velocity for this object. O ( ( X - X,)2 + ( Y - Y ) 2 + ( 2 - Z, ) 2 ) 1/2 1 1 2 O ( (X - x1 3 + ( Y - Y)3 + (2- z)3)/3/ t O ( ( X - X ) = + ( Y - > > > + ( 2 - Z, ) 2 ) 1/2 / t O ( X - X ) = + ( Y - > > > + ( Z - z, > > I t O ( ( X - X ) = + ( Y - > > > + (2- z,12) /2 t O ( ( X - x . ) + ( Y - Y ) + ( Z - z ) ) / tQUESTION 6 The initial position of some object is described by coordinates X, and Y. The final position is described by coordinates X, and Y. It takes time t to move from the initial position to the final position. Choose the correct formula to calculate what was the magnitude of the average velocity for this object. O ( (X - X) 3 + ( Y - Y )3 )/3/ t O ( ( X - X ) = + ( Y - > > > > /2 t O ( ( X - X > > + ( Y - > > > > / 2 / t O ( ( X - X ) = + ( Y - > > > > / 2 1 1 2 O ( X - X ) + ( Y - Y ) ) I t O ( X - X ) 2 + ( Y - Y > > ItQUESTION 7 The initial position of some object is described by coordinates X, and Y The final position is described by coordinates X, and Y. It takes time t to move from the initial position to the final position. Choose the correct formula to calculate the angle between the velocity direction and the x-axis direction. cos- 1 ( ( X - X )I( Y - Y) ) sin - 1 ( ( X - X ) I ( Y - Y ) ) tan- 1 ( ( Y - Ya)/ ( X- X) tan - 1 ( ( X - x,)3 / (Y - Y)3 ) tan - 1 ( ( X - X ) / ( Y - Y ) ) tan- 1 ( (x - x) =/ ( Y- Y> )QUESTION 8 The initial velocity of some object is described by the velocity components .x, Vy, and Voz. The final velocity is described by the components Vx, Vy, and Vz. It takes time t to change from the initial velocity to the final velocity. Choose the correct formula to calculate the magnitude of the average acceleration for this object. O ((Vx - Vox)2 + (VY - Vay)2 + (Vz-Voz)2) 1/2 1 12 O ( ( VX - V X)3 + (VY - Vy)3 + (Vz- V,z)3)1/3/ t O ( (Vx - V x)2 + ( VY - Vy)2 + ( Vz- Voz)2) 1/2 1 t O ( VX - Vox ) + ( VY - Vay) + (Vz-V.z) it O ( VX - Vox) 2 + ( VY - Vy)2 + ( Vz- V.z)2 1 t O ( (Vx - Vox)2 + (VY - Vy)2 + (Vz- V z)2)1/2 tQUESTION 9' The initial velocity of some object is described by the velocity components x, y The final velocity is described by the components Vx, Vy It takes time t to change from the initial velocity to the final velocity. Choose the correct formula to calculate the magnitude of the average acceleration for this object. O ( VX - Vox) 2 + ( VY - Vay)2 1 t O ( Vx - V x) + ( VY - Vay) it O (( VX - Vox) 3 + ( VY - Vy)3 )/3/ t O ( ( VX - VX) 2 + ( VY - Vy/2 ) 1/21 12 O ( (Vx - Vox) 2 + ( VY - Vy) 2 ) 1/2 It O (( Vx - V x) 2 + ( VY - Vy)2 ) /2 tQUESTION 10' The initial velocity of some object is described by the velocity components .x, Vy. The final velocity is described by the components Vx, Vy It takes time t to change from the initial velocity to the final velocity. Choose the correct formula to calculate the angle O between acceleration direction and the direction of the x axis. O 0 = tan -1 (( Vy - V.y) / (Vx - Vx) ) O 0 = sin -1 ( Vy - Vy ) / ( Vx - Vx) ) O 0 = tan - 1 ( ( V x - V x ) / ( Vy - Vy ) ) O 0 = Cos-1 ((Vy - Vy) / (Vx - Vx)) O 0 = tan -1 ( Vy - Vox ) / ( Vy - Vx ) ) O 0 = tan ' ( ( V x - V y ) / ( V x - Vy ) )