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Worksheets1D Motion Practice (Kinematics)
Total questions: 8
Worksheet time: 30mins
On Halloween MIT students have a custom to through pumpkins off an 80m building.
However wasteful, it presents an excellent opportunity for physics problems.
What is the equation of acceleration?
Assumptions:
Positive direction is down
Acceleration due to gravity will be rounded to 10m/s^2
a(t) = -10t
a(t) = 10t
a(t) = 10
a(t) = -10
What is the equation of velocity?
Acceleration = a(t) = 10m/s^2. Integrate to get velocity.
Assumption: initial velocity is zero.
v(t) = -10t
v(t) = 10t
v(t) = 10t + C
v(t) = -10t + C
What is the equation of displacement?
Velocity = v(t) = 10t m/s. Integrate to get displacement.
Assumption: initial displacement is zero, positive direction is down
y(t) = -10t+80
y(t) = 10t^2
y(t) = 5t^2
y(t) = 5t^2 + 80
How many seconds does it take for the pumpkin to reach the ground?
y (t) = 5t^2
The height of the building is 80m.
The branch is initially 36cm. If you saw the branch with cosntant acceleration of 2cm/s^2.
How long will it take you to start falling?
8 seconds
2 seconds
6 seconds
Two lovely ladies started walking towards each other at 9am and walked for 16km at constant speed of 8km/h.
How long was their covnersation if they finally part at noon?
1 hour
2 hours
11 hours
A car moving from point A to point B is going 80km/h. It drives for 3 hours and punctures a tire on a rusty nail.
A bike moving from point B to point A is going 16km/h and rides for 3 hours before it punctures a tire on the same exact nail.
What is the distance between point A and B?
240km
288km
48km
One little boy has a night mare that he is chased by a tiger, a lion and a physics teacher. In his dream he can only run at 1km/h. The tiger can run at 2km/h, the lion at 3km/h and the physics teacher at 6km/h. The boy had a head start of 10km at 6am.
Who will catch him if at 8am his alarm will sound?
Lion
Tiger
Physics Teacher
