test092p3

test092p3 - 11) A plane has an airspeed of 142 m/ s. A 16.0...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 11) A plane has an airspeed of 142 m/ s. A 16.0 m/ s wind is blowing southward at the same time as the plane is flying. If the velocity of the plane relative to Earth is due east, what is the magnitude ofthat~? [41 m/ s) B) 16.2 m/ s C) 158 m/ s D) 16.0 m/ s E) 48 m/ s '---- .-/ S Of) ~ • ~ J (l 0 .N~. 11) A 12) A 600-kg car is going around a curve with a radius of 120 m that is banked at an angle of 20° with a speed of 24.5 m/ s. What is the minimum coefficient of static friction required for the car T not to skid? C) 0.24 E) 0.48 A) 0.36 B) 0.60 12) D '" (A) 1 IT5I J Tnrf; J~ V' ~ f'rJf\ 0' 5..~-==T-r>11'>6~a?; T T", "",e.d ~~ = T- Mild H:9- "~/ / - FIGURE 2 ., // Y'YI B ,/ ~LI /' ~":~e~:~';:~ /" \,:)/~ il1!) ::: Yh A- S i fJ cJ- .: (3.1 S.n JO ,-;) ~(tS/'JJ ./;'\ ""'/'----.-"~-'!---------" 13) Two masses are connected by a string which goes over an ideal pulley as shown in Figure 2. 13) Block A has a mass of 3.0 kg and can slide along a smooth plane inclined 30° to the horizontal. ~.'.. mass of block B if the system is in equilibrium? a "",0 ~) 1~~ B) 6.0 kg C) 2.6 kg D) 3.0 kg E) 3.5 kg f3, 14) What would be the weight of a 59.1-kg astronaut on a planet with the same density as Earth and having twice Earth's ra~,;---:;) A) 290 N ~ C) 580 N D) 1200 N E) 2320 N 14) 15) How much energy is needed to change the speed of a 1600 kg sport utility vehicle from 15.0 m/ s to 40.0 m/ s? ./~ A) 20.0 kJ ~ C) 0.960 MJ D) 40.0 kJ E) 10.0 kJ 15) 16) You are trying to cross a river that flows due south with a strong current. You start out in your motorboat on the east bank desiring to reach the west bank directly west from your starting point. You should head your motorboat @in a northwesterly direction. ~ f --->. -' \( B) due west V =- V --+ VO C) due south. D) due north. I E) in a southwesterly direction. 16) A 17) An object of 1.0 kg mass is pulled up an inclined plane by a constant force of 10 N that causes a displacement of 0.50 m. The angle of inclination with the horizontal is 30°. Neglect friction and use g = 10 m/s2. What is the work done by the 10 N force on the object along the inclined plane? .' 2 A) 4.3 J B) 4.3 kg m/s C) 2.5 J~~~Jl 17) .D it-I -. '" "'" +V(" ::. v", :::::I 3 ...
View Full Document

Ask a homework question - tutors are online