Laws of MotionMedium
Question
A particle is resting on a smooth horizontal floor. At t = 0 , a horizontal force starts acting on it. Magnitude of the force increases with time according to law F = α . t , where a is a constant. For the figure shown which of the following statements is/are correct ?
Options
A.Curve 1 shows acceleration against time
B.Curve 2 shows velocity against time
C.Curve 2 shows velocity against acceleration
D.none of these
Solution
F = at
a =
t ....(i) straight line curve 1
dv =
tdt
v =
curve 2....(ii)
divide (ii) by
v =
→ Paacebole curve 2.
a =
t ....(i) straight line curve 1dv =
tdtv =
curve 2....(ii)divide (ii) by
v =
→ Paacebole curve 2.Create a free account to view solution
View Solution FreeMore Laws of Motion Questions
Three masses of 1 kg , 6 kg and 3 kg are connected to each other with threads and are placed on table as shown in figure...There force F1,F2and F3 act on an object simultaneously. There force vectors are shown are shown in the following free-b...A body of mass 40 g is moving with a constant velocity 2 cm/s on a horizontal frictionless table. The force on the body ...A piece of wire is bent in the shape of a parabola y = kx2 (y-axis vertical) with a bead of mass m on it. The bead can s...A force of magnitude F1 acts on a particle so as to accelerate it from rest to a velocity v. The force F1 is then replac...