GENERAL PHYSICS 1

What happen when the object in projectile motion reaches its maximum height?

• it begins to accelerate downward

• it begins to accelerate parabolic

• it begins to accelerate sideward

• It begins to decelerate

Which of the following is the displacement of the projectile motion in the horizontal direction?

• Distance along y-axis

• Height

• Initial velocity

• Range

Which of the following is the vertical motion displacement of the projectile?

• $x=V_xt$

• $V_x=V_xi$

• $y=V_yit-1/2gt^2$

• $V_y=V_yi-gt$

Which of the following affects the launched of the projectile motion?

• angle

• Force

• Gravity

• object

Which of the following is constant in the whole travel and equal to the initial launched of the projectile in motion?

• $V_x$

• $v_y$

• $v_xi$

• $v_yi$

What is the acceleration of the object launched along the horizontal direction and assumed that air resistance is negligible?

• 9.8 m/s

• – 9.8 m/s

• Same at the initial velocity

• Zero

Which of the following affects the motion of a projectile launched horizontally?

• Final velocity

• Initial velocity

• Mass

• maximum height

Which of the following describes projectile motion?

• Horizontal velocity changes in the whole travel

• The object is affected by its mass

• The shape of the path is circular

• Vertical velocity changes constantly per time due to gravity

Which of the following scientist discovered the projectile motion?

• Albert Einstein

• Charles Darwin

• Isaac newton

• Galileo Galilei

What is the maximum height of a projectile launched with initial velocity f 25 m/s at an angle of 30˚?

• 7.98 m

• 15.94 m

• 31.89 m

• 63. 76 m