WorksheetsMotion in a plane, part - 1
Total questions: 20
Worksheet time: 14mins
The acceleration of a particle starting from rest varies with time according to the relation a=bt+c , Then the velocity of the particle after time t must be:
2bt2+ct
1/2 bt2+ct
bt2+ct
1/2(bt2+ct)
A projectile is fired a velocity of 150 meters per second at an angle of 30 degrees with the horizontal. What is the magnitude of the vertical component of the velocity at the time the projectile is fired?
150. m/s
130. m/s
75. m/s
225 m/s
A particle has initial velocity (2j + 3k) and acceleration ( 0.3j + 0.2k) . The magnitude of velocity after 10 seconds will be:
9 √2 units
5 √2 units
5 units
9 units
The time taken for one complete revolution is called the...
Period
Frequency
Angular velocity
Choose the incorrect option:
A . B = B . A
i.j=0
k.k=0
j.j=1
What is the magnitude of the resultant vector, r?
3
4
5
7
When the only force on an object is gravity:
free fall
acceleration
gravity
range
identify the correct option representing vector addition a + b =c
identify the correct option representing a - b =c
A stone is just released from the window of a train moving along a horizontal straight track. The stone will hit the ground following:
Hyperbolic path
Straight path
Circular path
Parabolic path
An airplane flying 490 m above ground level at 100 m/s, releases a block. How far on the ground will it strike?
2 km
0.1 km
1 km
None
A body of mass m, projected at an angle of θ from the ground with an initial velocity of v, acceleration due to gravity is g, what is the maximum horizontal range covered?
R = v2 (sin θ)/g
R = v2 (sin 2θ)/g
b) R = v2 (sin θ)/2g
R = v2 (sin 2θ)/2g
A car travels 5m in X direction and then 7m in Y direction. What is the final vector position of the car with respect to the origin?
5î + 7ĵ
7î + 5ĵ
7î + 7ĵ
5î + 5ĵ
At highest point the value of acceleration is:
maximum
g
minimum
zero
A ball is thrown up with a certain velocity at an angle theta to the horizontal. The graph between kinetic energy and H(height) is:
a
b
c
d
Two particles are projected with same velocity but at angles of projection (45-θ) and (45+θ). Then
2:1
1:2
1:1
90/2θ
