Question

Question 10 (1 point) Which list contains only vector quantities? a) displacement, velocity, density b) time, velocity, acceleration c) acceleration, velocity, distance d) power, energy, time e) displacement, velocity, acceleration f) acceleration, force, distance g) mass, force, displacement Question 11 (1 point) Bob is in a helicopter, hovering over Tallula's house. He throws a bowling ball straight down with a speed of 6.81 m/s, hoping to make a hole in Tallula's roof. Unfortunately, he misses, and the ball lands in her garden, crushing some daffodils. If the bowling ball has a mass of 4.67 kg and hits the ground 2.23 s after it is thrown, calculate the height of the bowling ball above the ground in metres at the moment it was thrown 4+ FI F2 F5 F6 F7 FS F10 $ % & N 3 4 5 6 7

Answer 1

velocity Question (10) Vector Quantities - acceleration Displacement, force. option(e) Displacement, Velocity, acceleration ANSWER Question(11) mass of ball (m) = 4.67 Kg © U= 6.81 ms Initial vertical speed (u) = 6.01 m/s find height (h)=? y g = 9.8 m/s² = 2.23 sec h from equation of motion - h=ut + 1 gt To Garden where, g = acceleration due to gravity = 9.81 m/s2 9.01x(2-23) 4 = (6-81 x 2-23)+3 h = 39.58 m ANSWER time it)

Question (10) Option (e) is correct

In question (11) , Mass of bowling ball is not used , equation of motion is sufficient to calculate the height of bowling ball.