If an object is projected at angle of 60° with vertical with initial speed 20 m/s, then time of flight is

8

Questions Match

1.
If an object is projected at angle of 60° with vertical with initial speed 20 m/s, then time of flight is

1. 2. 2 s3. 4 s4. 1 s

2.
If an object is projected at angle of 60° with vertical with initial speed 20 m/s , then range of projectile is

1. 20 m2. 40 m3.  m4. 10 m

3.
If an internal conservative force does a work W on a system, then the change in potential energy ΔU is given by

1. ΔU = – W2. ΔU = + W3. ΔU = – W/24. ΔU = W/2

4. If an object is thrown upward at 30 m/s, what is the time to reach maximum height? (Take g = 10 m/s²)

1. 2 s2. 3 s3. 4 s4. 5 s

5. If an object moves in a circular path of radius \( r \) with uniform speed \( v \), what is the direction of acceleration?

1. Along the direction of motion2. Opposite to the direction of motion3. Radially inward4. Radially outward

If an object is projected at angle of 60° with vertical with initial speed 20 m/s, then time of flight is