Class Exercise 1. A body is moving with uniform acceleration of 10 m/s2. If it starts from rest, calculate its displacement after 5 s.
Answers
Answer:
D
625m
The initial velocity travelled is 625m
The accleration is α=10m/s
2
The time is t=5s
Apply the equation of motion
v=u+at
The velocity is v=0+10.5=50m/s.
The distance travelled in the first 5s is
s=ut+
2
1
at
2
=0.5+
2
1
.10.5
2
=125m
Thedistancetravelledinthefollowing10sis
s
1
=ut
1
=50.10=500m
Thetotaldistancetravelledis
d=s+s
1
=125+500=625m
Step-by-step explanation:
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Answer:
❝In physics, the motion is the change in position of an object with respect to its surroundings in a given interval of time.❞
The motion of an object with some mass can be described in terms of the following:
➣Distance
➣Displacement
➣Speed
➣Velocity
➣Time
➣Acceleration
Types of Motion
Motion of an object depends on the type of force acting on the body.
❥ Translational – It is the type, where an object moves along a path in any of the three dimensions.
❥ Rotational – It is the type, where an object moves along a circular path about a fixed axis.
❥Linear – It is a type of translational motion where the body moves in a single direction along a single dimension.
❥ Periodic – It is the type of motion that repeats itself after certain intervals of time
❥ Simple Harmonic – It is the type of motion like that of a simple pendulum where a restoring force acts in the direction opposite to the direction of motion of the object. This restoring force is proportional to the displacement of the object from mean position.
❥ Projectile – It is the type of motion which has a horizontal displacement as well as vertical displacement.
❥ Oscillatory – It is the type of motion which is repetitive in nature within a time frame. If it is mechanical in nature it is called vibration.
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