Question 4 of 34
1 Point
Liz and Jacqueline each hit a golf ball off the top of an ocean cliff. Liz's ball
has a horizontal velocity of 20 m/s and a vertical velocity of 1 m/s.
Jacqueline's ball has a horizontal velocity of 20 m/s and a vertical velocity of
2 m/s. Which of the following statements is true?
O
A. The two balls will stay in the air the same time, but Jacqueline's
will travel farther,
O
B. Liz's ball will stay in the air longer and travel farther,
O
C. The two balls will stay in the air the same time, but Liz's will travel
farther
O
D. Jacqueline's ball will stay in the allonger and travel farther,

what was the acceleration of the 2 kg cart?

⇒ 16.0 cm/s2

what was the acceleration of the 4 kg cart?

⇒ 8.1 cm/s2

what was the acceleration of the 6 kg cart?

⇒ 5.3 cm/s2

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19